The following pulmonary volumes and capacities would change if you collected the data after vigorous exercise:
VT: increased IRV: decreased ERV: decreased RV: decreased TLC: unchanged
Explanation: During vigorous exercise, the body’s oxygen demand increases, and as a result, the lungs increase their activity. As a result, the amount of air that is inhaled (VT) increases, as more air is needed to provide oxygen to the muscles.
However, the other pulmonary volumes would decrease after vigorous exercise. The inspiratory reserve volume (IRV) would decrease because, during vigorous exercise, the lungs may not have enough time to fill up to their maximum capacity. As a result, the amount of air that can be inhaled after a normal inspiration would be reduced.
The expiratory reserve volume (ERV) would also decrease because, during vigorous exercise, the body needs to eliminate carbon dioxide, which results in a greater amount of air being exhaled.
The residual volume (RV) would also decrease after vigorous exercise because the lungs are working more efficiently, which results in more air being exchanged in and out of the lungs.
Finally, the total lung capacity (TLC) would remain the same because the amount of air that is inhaled (VT) increases by the same amount that the other volumes decrease.
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The areas of the body most affected by deficiencies of B vitamins include the:
The areas of the body most affected by deficiencies of B vitamins include the... Digestive system and brain and nervous system.
The nervous system is a complex network of cells and tissues that coordinates and controls the functions of the body. It is composed of two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS).
The CNS consists of the brain and the spinal cord, which receive, process, and interpret information from sensory organs, such as the eyes, ears, nose, and skin, and send commands to muscles, glands, and organs through the PNS. The PNS, in turn, is made up of nerves that connect the CNS to the rest of the body and can be further divided into the somatic nervous system and the autonomic nervous system.
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Which of the following pain sensation(s) is(are) associated with neuropathic pain? (Select all that apply.)
a. Infection
b. Inflammation
c. Obstruction
d. Postamputation
Neuropathic pain sensations are associated with Postamputation, Infection, and inflammation.
Neuropathic pain is the term for pain that is caused by harm to the nervous system, which is responsible for transmitting messages from the brain to the rest of the body. It's unlike nociceptive pain, which is caused by injury to tissues like muscles, joints, and bones. Infection, inflammation, obstruction, and postamputation are all pain sensations that can be associated with neuropathic pain.
In contrast, nociceptive pain is generally caused by tissue damage. Obstruction typically occurs when a nerve is compressed or damaged, leading to a sensation of burning or stabbing pain. Postamputation pain can occur when a nerve is cut during a surgical procedure, leading to an intense and uncomfortable sensation.
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If the DNA of a representative species from each of the major kingdoms was examined, the sequences coding for which of following would be expected to be most similar?
A. Photosynthesis
B.Colesterol synthesis
C.Protein modification
D.DNA synthesis
If the DNA of a representative species from each of the major kingdoms examined, the sequences coding for DNA synthesis would be expected to be similar. DNA stores genetic material. Thus, the correct option is D.
What is DNA sequence?DNA is the genetic material that stores information about the biological functioning of living organisms. There are four kingdoms of eukaryotic organisms: Fungi, Animalia, Plantae, and Protista. It is anticipated that the DNA sequences coding for DNA synthesis will be most similar among these kingdoms. DNA is essential for the replication and regeneration of all living organisms.
The sequences encoding the enzymes that create DNA polymerase, helicase, and other replication factors are expected to be nearly identical because they are necessary for cell division in all of the kingdoms of life. These proteins are required for DNA replication and cell proliferation, which are the basic processes that sustain life. Therefore, the DNA sequences coding for DNA synthesis are expected to be most similar among representatives of major kingdoms.
Therefore, the correct option is D.
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Fill in the blanks blank a. _______secrete hormones into the bloodstream, whereas_________ secrete substances into ducts and onto the skin or the lumen of a hollow organ. b. ________Goblet cells and mammary glands are both exocrine glands--how are they similar and how are they different?
(a) Endocrine glands secrete hormones into the bloodstream, whereas exocrine glands secrete substances into ducts and onto the skin or the lumen of a hollow organ.
(b). Goblet cells and mammary glands differ in the type of substance they secrete and the location where they secrete it.
What is endocrine gland?An endocrine gland is a type of gland that secretes hormones directly into the bloodstream. Hormones are chemical messengers that travel through the bloodstream to target cells or organs and have a variety of functions in the body, including regulating growth and development, metabolism, and reproduction.
Examples of endocrine glands in the human body include;
the pituitary gland, thyroid gland, adrenal gland, and pancreas.Goblet cells secrete mucus onto the surface of epithelial tissues, while mammary glands secrete milk into ducts that lead to the nipples.
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draw a dna molecule that have five randomly spaced restriction sites for a specific palindrome. how many fragments would be produced if each site were cut by a restriction enzyme?
To draw a DNA molecule with five randomly spaced restriction sites for a specific palindrome, use a ruler to draw a curved line to represent the backbone of the molecule. Then, draw five straight lines parallel to each other in the middle of the curved line to represent the palindrome.
What is a palindrome?A palindrome is a word, number, sentence, or other sequence of characters that reads the same forward and backward. For example, the word "racecar" is a palindrome. The restriction sites are a location on a DNA molecule where a restriction enzyme, an enzyme that cuts DNA at a specific site, recognizes and cleaves the DNA molecule.
DNA is the abbreviation for deoxyribonucleic acid. The structure of the DNA molecule resembles a spiral ladder or a twisted rope ladder, with the side railings being formed of alternating sugar and phosphate groups. Hence, the DNA molecule that has five randomly spaced restriction sites for a specific palindrome, and the number of fragments that would be produced if each site were cut by a restriction enzyme are as follows:5 restriction sites will be present on the DNA molecule, and because they are for a specific palindrome, they will be the same when read backward or forward.
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23. perception refers to the process by which: a. the brain organizes and interprets sensation b. sensory receptors gather information from the environment c. sense organs transmit information to the brain for initial processing d. the brain minimizes response to stimuli that do not change
Perception can be referred to as the process by which the brain organizes and interprets sensation. This occurs through transformation of sensory information. Thus, the correct option is A.
What is Perception?The process by which people organize and interpret the sensory input to give significance to their environment is known as perception. To understand how this perception functions, it is important to first comprehend sensation.
Sensation is the detection of physical stimuli, such as the sound waves or the light waves, by the sensory receptors which are located in the eyes, ears, nose, tongue, and skin organs. This sensory information is transformed into the neural signals that are carried to the brain, where they are interpreted into meaningful patterns.
Perception includes the integration of these signals into meaningful experiences, as well as the interpretation of the significance of stimuli in the context of an individual's personal history and expectations. Sensory receptors are specialized cells which respond to specific types of stimuli, such as light or sound waves.
Sense organs are the collections of these receptors which are grouped together to form the sensory systems, such as the visual or the auditory systems. When the sensory receptors detect these stimuli, they send signals to the brain for initial processing.
These signals are then transformed into meaningful patterns through the process of perception, which includes the integration of the signals into meaningful experiences, as well as the interpretation of the significance of stimuli in the context of an individual's personal history and expectations.
Therefore, the correct option is A.
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What phenotype would be expected in balanced translocation heterozygotes in the absence of position effects?
Phenotype would be expected in balanced translocation heterozygotes in the absence of position effects would be expected to be normal.
In the absence of position effects, the phenotype would be anticipated to be normal in balanced translocation heterozygotes, where there is a rearrangement of genetic material between two non-homologous chromosomes with no loss or gain of genetic material.
This is because the translocation changes the position of genes in the genome rather than their quantity or structure. If the translocation breakpoint happens within a gene, it may disrupt its function or result in the formation of a fusion protein with altered activity.
Furthermore, position effects can arise when a translocation breakpoint disrupts gene expression regulation by changing the local chromatin structure.
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Does a synapse involves two cells? What are they?
Synapse is the junction between the axon of one neuron and the dendrite of another, through which the two neurons communicate.
A synapse is a specialised and distinctive connecting point that enables communication between two neurons or between a neuron and an effector cell. Chemical and electrical synapses are the two different kinds.
A presynaptic membrane, a postsynaptic membrane, and a synaptic cleft are all components of a normal chemical synapse, which is located at the terminal bouton of an axon. Hence, the structures in the answers b through d are synaptic ones. While though glia, especially astrocytes, can be found around or even inside synapses, they are not necessary parts of a synapses.
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what needs to be improved about the human activity system?
Answer:
Brain
Explanation:
The brain needs to be improved because we always use it not only in storing words or something else but we can also use our brains to see without the eyes so the brains need to be improved
Which is the function of the exoskeleton in animals?
ITS NOT C!
Produces the sperm used in reproduction.
Protects against different weather.
Protects against their environment.
Works with muscles to allow movement.
Answer:
B. though I'm not too sure
Answer:
B
Explanation:
Protects against different weather.
If a person contracts pneumonia, inflammation occurs in the lobules of the lung, causing fluid leakage into the alveoli. Which of the following best describes the effect this has on gas exchange?
A) The distance between the alveolar cell layer and the capillary endothelium in the respiratory membrane increases to a point at which the surfaces are too far away for efficient gas exchange.
B) The diaphragm and accessory muscles have to work too hard to expand the lungs. Therefore, they become fatigued. When this happens, the person can no longer breathe.
C) As the alveoli fill with fluid, air cannot reach the alveolar surface and gas exchange cannot occur, compromising the function of the respiratory membrane.
D) Fluid leaks into the pleural cavity and causes a restriction in lung expansion as well as reducing lubrication on the parietal surface of the membrane.
The best description of the effect on gas exchange when a person contracts pneumonia is option C "As the alveoli fill with fluid, air cannot reach the alveolar surface and gas exchange cannot occur, compromising the function of the respiratory membrane.
When a person contracts pneumonia, inflammation occurs in the lobules of the lung, causing fluid leakage into the alveoli. This fluid buildup can affect the lungs' ability to oxygenate the blood that flows through it.
The fluid in the alveoli makes it difficult for oxygen to cross into the bloodstream. It also makes it difficult for carbon dioxide to leave the bloodstream and enter the lungs. The fluid in the lungs may cause breathing difficulties, which can lead to hypoxia (low oxygen levels in the body).
As a result, the respiratory membrane's ability to perform its job is jeopardized since air cannot reach the alveolar surface and gas exchange cannot take place. Therefore, option C is the best description of the effect on gas exchange when a person contracts pneumonia.
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4. Why are geographic information systems useful to farmers? What do you think the
pluses and minuses would be of adopting this technology?
GIS in agriculture enables improved management of land resources, which enables farmers to enhance productivity while lowering expenses.
What role does the geographic information system have in farming?Farmers can map field data, organise and analyse it, and remotely monitor their crops thanks to the usage of GIS in agriculture. Farm automation has benefited from advances in satellite monitoring, robots, drones, and GPS. These technologies support the gathering of GIS data.
What benefits come from utilising a geographic information system?By producing maps and scenes, GIS users may arrange, display, and analyse many layers of data. Users may find patterns, comprehend trends, keep track of changes, and react to events with the help of clear visualisation of various types of data, enabling improved decision-making.
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Lesson 4 Invertebrate Evolution and Diversity 1
I need help with this lesson if anyone could help me today
Invertebrate don't have or develop a vertebral column, also known as a backbone or chine. Insects, spiders, prawns, draggers, oysters, squids, octopuses, earthworms, moochers, and doormat are all exemplifications of pets.
Elaboration of Invertebrate
The first bitsy critter appeared in the ocean3.5 billion times agone . The first pets were born in the water. Cambrians, for illustration, were soft- bodied creatures with a carapace or shell.
Brute bracket
The elaboration of pets has established numerous abecedarian characteristics of advanced organisms, from the foremost sponger species to the more recent echinoderms.
What's biodiversity, and why is it important?
Biodiversity refers to the cornucopia and diversity of life on the earth, and it's our earth's most complicated and vital characteristic. Life couldn't live without biodiversity.
Biodiversity bracket
Diversity is classified into three orders
inheritable Biodiversity
Species Biodiversity
Ecological Biodiversity
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Complete Question:
What are Evolution of Invertebrates: Symmetry & Specialization? Also mention what is biodiversity?
The Human Genome Project led to the new study of A. genetics. B. genomics. C. genoethics. D. bionomics.
Genomics is the answer.
put the following steps in order for making a protein that will be exported from a eukaryotic cell, beginning with the first step at the top of the list. instructions choice 1 of 5. the vesicle delivers the protein to the golgi apparatus, where the protein folds and is packaged in a vesicle for export from the cell. toggle button the vesicle delivers the protein to the golgi apparatus, where the protein folds and is packaged in a vesicle for export from the cell. choice 2 of 5. the mrna binds to a ribosome of the rough er and produces a protein, which exits the er in a vesicle. toggle button the mrna binds to a ribosome of the rough er and produces a protein, which exits the er in a vesicle. choice 3 of 5. in the nucleus, genes in the dna that encode the membrane protein are copied into a messenger rna (mrna). toggle button in the nucleus, genes in the dna that encode the membrane protein are copied into a messenger rna (mrna). choice 4 of 5. the vesicle fuses with the cell membrane and releases the protein to the extracellular environment. toggle button the vesicle fuses with the cell membrane and releases the protein to the extracellular environment. choice 5 of 5. the mrna exits the nucleus through nuclear pores of the nuclear envelope. toggle button the mrna exits the nucleus through nuclear pores of the nuclear envelope.
The order for making a protein that will be exported from a eukaryotic cell is: (1) mRNA exits from the nucleus, (2) genes copied into mRNA, (3) mRNA binds a ribosome, (4) protein packaged in Golgi apparatus, (5) protein released.
The mRNA exits the nucleus through the nuclear pores of the nuclear envelope. In the nucleus, genes in the DNA that encode the membrane protein are copied into a messenger RNA (mRNA).
The mRNA binds to a ribosome of the rough ER and produces a protein, which exits the ER in a vesicle. The vesicle delivers the protein to the Golgi apparatus, where the protein folds and is packaged in a vesicle for export from the cell.
The vesicle fuses with the cell membrane and releases the protein to the extracellular environment.
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how do food chains and food webs both show how energy transfers in a ecosyestem, how do they differ from one another.
the oldest bird fossils date back to around 150 million years ago. the number of different bird species in the fossil record remained small for the next 90 million years. around 65 million years ago, the dinosaurs went extinct. after the extinction, around 60 million years ago, thousands of new bird species began to appear in the fossil record that occupied a variety of habitats. what it is?
The passage describes the evolution of birds over millions of years. Around 150 million years ago, the oldest bird fossils date back to this period.
However, the number of different bird species remained limited for the following 90 million years. The significant change occurred around 65 million years ago when the dinosaurs went extinct, possibly due to an asteroid impact.
This extinction event created opportunities for birds to diversify and occupy various ecological niches.
As a result, around 60 million years ago, thousands of new bird species began to appear in the fossil record, leading to the diverse array of bird species we observe today, inhabiting a wide range of habitats.
This period marked a remarkable evolutionary radiation for avian species.
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____ is best defined as physical changes that mark the transition from childhood to young adulthood.
a. Puberty
b. Menopause
c. Primary circular reactions
d. Secondary circular reactions
Physical changes that signal the passage from childhood to adolescence are best described as puberty.
What is the term for the period of time between childhood and adulthood?Adolescence is a stage that occurs between childhood and adulthood. Its onset is indicated by pubertal development, and its offset is symbolised by parental independence.
What do we refer to as the transitional stage between childhood and adulthood? What occurs between the time a youngster reaches puberty and the age of 18?Young individuals go through a lot of changes as they transition into physical adulthood during adolescence. The emergence of the secondary sexual features marks the beginning of prepubescent alterations.
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Through what body part do Chloe and Nurb enter to begin their respiratory system journey?
Chloe and Nurb enter their respiratory system journey through the nostrils located in the nose.
The respiratory system is responsible for the intake and outflow of air in the body. It helps in the exchange of gases like oxygen and carbon dioxide. The respiratory system comprises of the lungs, nasal passages, bronchi, trachea, and other respiratory muscles. It is the most critical system of the human body as it is responsible for the exchange of oxygen and carbon dioxide, which is essential for survival. The process starts when the oxygen enters through the nasal passages, reaches the lungs where it is exchanged for carbon dioxide through the alveoli.The process of inhalation and exhalation takes place in the lungs. The oxygen enters the lungs through the nasal passage and the mouth. It then moves through the trachea and bronchi and enters the alveoli, which is responsible for the gas exchange. It is here that the oxygen and carbon dioxide are exchanged. Once the exchange takes place, the oxygen travels to the blood, and the carbon dioxide is exhaled out of the body.
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1 pts Question 8 The area of the brain behind the forehead that helps us to think, strategize, and control emotions is the O dendrites O prefrontal cortex O corpus callosum O myelination 1 pts Question 9 Angela is 7 years old, and her little sister, Maurya is 2 years old. How are Angela's visual pathways likely to differ from those of her sister? Angela's visual pathways are likely to be less mature, allowing her illustrations to more clearly reflect what she visualizes. Angela's visual pathways are likely to be more mature, allowing her illustrations to more clearly reflect what she visualizes There is no way to predict this, because visual pathway development depends on the individual child and his/her situation Angela's visual pathways are not likely to be different from those of her sister.
Answer:
Explanation:
m
select only the events that occur during mitosis and place them in the correct order. start by clicking the first item in the sequence or dragging it here the mitotic spindle aligns the chromosomes with the middle of the cell. the chromosome is replicated. sister chromatids are separated into individual chromosomes. the nuclear envelope dissolves and chromatin condenses into chromosomes. the nuclear envelope condenses.
Mitosis is the process by which one cell divides into two daughter cells. During mitosis, the following events occur in this order:
The nuclear envelope dissolves and chromatin condenses into chromosomes.The mitotic spindle aligns the chromosomes with the middle of the cell.The chromosome is replicated, resulting in two sister chromatids.The sister chromatids are separated into individual chromosomes.The nuclear envelope condenses.In the first stage of mitosis, the nuclear envelope dissolves, meaning that the membrane that surrounds the nucleus of the cell breaks down. This allows the chromatin, which are strands of DNA, to condense and form visible chromosomes.
During the second stage, the mitotic spindle begins to form. This spindle is composed of microtubules, and it helps to align the chromosomes in the middle of the cell.
During the third stage, the chromosomes are replicated, forming two identical copies of each chromosome, which are known as sister chromatids. Next, during the fourth stage, the sister chromatids are separated and move to opposite sides of the cell.
Finally, in the fifth and final stage, the nuclear envelope condenses, forming two complete daughter cells.
Therefore, Mitosis is a cell division process that occurs in a highly coordinated and sequential manner to avoid deformities. The sequence is as given above.
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What is the role of monoamine oxidase and acetylcholinesterase in the nervous system?a. To produce neurotransmitter molecules.b. To serve as receptors for neurotransmitter molecules.c. To breakdown neurotransmitter molecules.
The role of monoamine oxidase and acetylcholinesterase in the nervous system is To breakdown neurotransmitter molecules therefore the correct option is C.
Monoamine oxidase( MAO) and acetylcholinesterase( pang) are enzymes present in the nervous system that play a part in neurotransmission. MAO is responsible for breaking down monoamine neurotransmitters like serotonin, dopamine, and norepinephrine, while pang breaks down the neurotransmitter acetylcholine.
The breakdown of these neurotransmitters is a necessary step in regulating the exertion of the nervous system. By breaking down neurotransmitters, MAO and pang help to control the inflow of information in the brain, allowing for proper communication among neurotransmitter.
Hence the correct option is C.
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antheraea polyphemus... basically a tarantula with wings. is called
The insect Antheraea polyphemus, also known as the Polyphemus moth, is a species of silkworm moth. It is known for its large wingspan, which can reach up to 6 inches. It is native to eastern North America and is found mainly in wooded areas.
The Antheraea polyphemus is called the Polyphemus moth. It is one of the largest moths in North America with a wingspan of up to 6 inches or 15 cm.
The Polyphemus moth is a species of Saturniidae moth that is found throughout North America. It's a giant silk moth that's named after Polyphemus, the giant cyclops in Greek mythology.
The Polyphemus moth is one of the largest moths in North America with a wingspan of up to 6 inches or 15 cm. It's easily identifiable by its large, bright, oval-shaped eyespots on its hindwings.
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does dna remain in the nucleus because it is too large to fit thorugh the pores in the nuclear envelope
DNA remains in the nucleus because it is too large to fit through the pores in the nuclear envelope. So, the statement is correct.
DNA is a long and complex molecule that carries genetic information. It is located in the nucleus of eukaryotic cells, which is separated from the cytoplasm by the nuclear envelope.
The nuclear envelope has small pores that allow for the exchange of molecules between the nucleus and the cytoplasm.
Inside the nucleus, DNA is organized into structures called chromosomes. Chromosomes are composed of DNA and proteins and contain the genetic information of an organism.
In conclusion, DNA remains in the nucleus because it is too large to fit through the pores in the nuclear envelope.
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why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?
Snow takes longer to enter the water cycle than liquid precipitation because of the process of melting.
Snow is made up of ice chargers and must be melted before it can enter the water cycle. This process takes longer than liquid rush because it requires further energy to melt the ice chargers. The snow must absorb enough heat to raise its temperature above indurating before it can turn into liquid water. also, the water from the snowpack frequently infiltrates
the soil, which farther detainments the process of entering the water cycle. Once the snowpack melts, the water can sluggishly enter the water cycle through evaporation, transpiration, and runoff.
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Which type of consumer is missing from this food chain?Food chain connected by right arrows from Raspberry bush to Rabbit to Owl
Question 4 options:
decomposer
herbivore
consumer
producer
Answer:
Decomposer
Explanation:
Food chain is mostly in the following order
Producer → Herbivore → Carnivore/Omnivore → Predators (owl)→ Decomposer
In the given food chain,
Raspberry bush is producer
Rabbit is herbivore
Owl can be considered as carnivore/omnivore/predator.
so, here decomposer is the missing level in the food chain.
True/False: Like the lumen of the endoplasmic reticulum (ER), the interior of the nucleus is topologically equivalent to the outside of the cell.
The given statement that 'Like the lumen of the endoplasmic reticulum (ER), the interior of the nucleus is topologically equivalent to the outside of the cell' is false.
The nucleus is a membrane-bound organelle present inside the cell that contains genetic information. The nucleus is separated from the cytoplasm by the nuclear envelope.
The nuclear envelope consists of two lipid bilayer membranes: the outer membrane and the inner membrane, which encloses the nucleoplasm. Thus, it can be said that the interior of the nucleus is not topologically equivalent to the outside of the cell as the nuclear envelope separates the inside from the outside of the nucleus.
Moreover, the endoplasmic reticulum (ER) is an organelle that exists within the cytoplasm of eukaryotic cells. It consists of a network of flattened sacs and tubules. It does not have any nuclear envelope that separates its inside from the outside of the cell. Hence, the given statement is false.
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What 3 part chamber is shared between the respiratory and digestive systems?
The pharynx is a three-part chamber that is shared between the respiratory and digestive systems. The nasopharynx, oropharynx, and laryngopharynx are the three parts of the pharynx. The respiratory and digestive systems share the pharynx to maintain respiration and digestion.
The pharynx is a muscular tube that connects the oral cavity and the nasal cavity with the esophagus and larynx. It's a common route for food, liquids, and air. The pharynx also helps in the vocalization of sound. It has three parts: the nasopharynx, oropharynx, and laryngopharynx. The nasopharynx begins at the back of the nasal cavity and extends to the soft palate. The pharyngeal tonsils are found in the nasopharynx.
The oropharynx is situated behind the oral cavity and is found in the back of the mouth. The palatine and lingual tonsils are located in the oropharynx. The laryngopharynx is situated beneath the oropharynx and extends to the esophagus. The opening of the larynx and the esophagus are found in the laryngopharynx. Therefore, we can conclude that the three-part chamber shared between the respiratory and digestive systems is the pharynx.
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2. all of the following are accurate pairings of a researcher with their contributions regarding learning except: a. ivan pavlov - demonstrated how the acquisition of a cr depends on pairing the cs and the us (c b.f. skinner - designed an operant chamber to study how operant behavior is reinforced and shaped john b. watson - showed the importance of learning by watching a model and imitating the model's behavior e. edward tolman - demonstrated learning occurs but may not be apparent until there is an incentive to demonstrate it martin seligman - contributed to our understanding of how learned helplessness develops in animals and humans
All of the following are accurate pairings of a researcher with their contributions regarding learning except John B. Watson - showed the importance of learning by watching a model and imitating the model's behavior.
Learning is an ever-present phenomenon in humans and animals, and researchers and scientists have been examining its nuances for decades. Numerous discoveries and experiments were conducted to help us understand the learning process better. Research in the field of learning helped us gain insight into how people learn and how the learning process can be enhanced to improve educational outcomes.
Ivan Pavlov demonstrated how the acquisition of a CR depends on pairing the CS and the US. B.F. Skinner designed an operant chamber to study how operant behavior is reinforced and shaped. Edward Tolman demonstrated that learning occurs, but it may not be apparent until there is an incentive to demonstrate it. Martin Seligman contributed to our understanding of how learned helplessness develops in animals and humans. John B.
Watson did not contribute to our understanding of how learned helplessness develops in animals and humans; therefore, he is the researcher who is not paired correctly with his contribution.
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a primary function of the skeletal system is group of answer choices contracting muscles. facilitating transmission of nerve impulses. maintaining the normal concentrations of calcium and phosphate ions in body fluids. absorbing the shock of unexpected rapid body movements. cushioning abdominal organs such as the kidneys.
The skeletal system maintains the normal concentrations of calcium and phosphate ions in body fluids. Thus, the correct option will be B.
What is the function of the skeletal system?The primary function of the skeletal system is to provide structural support to the body. The skeletal system is made up of bones and cartilage, which support and protect the body's organs, including the heart, lungs, and brain. It also allows movement, and produces blood cells, stores minerals, and regulates hormonal functions.
A primary function of the skeletal system is the maintaining the normal concentrations of calcium and phosphate ions in body fluids. The skeletal system stores about 99 percent of the body's calcium, and releases it into the bloodstream when necessary to keep calcium and phosphate levels within the normal range. It also serves as a reservoir for the phosphate ions needed to produce ATP, the molecule that provides energy to the body's cells.
Therefore, the correct option is maintaining the normal concentrations of calcium and phosphate ions in body fluids.
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