Many bony fish species have a swim bladder: an air-filled organ that can inflate to help them float up in water or deflate to help them sink down. What can you infer about a species that lacks this organ?
A species that lack a swim bladder, a fish without buoyancy issues will often stay still and erect in the water.
What is a swim bladder?You will notice excessive fin movement if your fish are trying to keep upright or are swimming sideways or upside down as they attempt to float correctly.
Thus, we may draw the conclusion that the swim bladder's air capacity rises as the fish dives deeper.
You might be shocked to learn that the majority of bony fishes have a swim bladder, a particular organ that helps them with that.
Therefore, this is a gas-filled sac with a thin wall that is found inside a fish's body.
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6. Understanding of the cell has changed over
time. Which explains why this has occurred?
A New scientific discoveries lead to new theories.
B Theories are redesigned every ten years as a necessity.
C The constantly evolving universe requires new theories to describe it.
D Larger number of scientists have opinions that must be incorporated.
Answer:
A
Explanation:
Cell theory was first formulated by Schwann and Schleiden, but because of new and advanced technology some statements were replaced and some are added.
Please help!
1.) Explain why the term cycle is used to describe the biogeochemical cycles.
2.) Compare and contrast the carbon and nitrogen cycles. Specifically, identify which happens when either exists in very large quantities in the environment.
What is the end result of mitosis?
A) one cell with two identical copies of DNA
B) two cells with different copies of DNA
C) one cell with two different copies of DNA
Answer:
A) one cell with two identical copies of DNA
Explanation:
The end result of mitosis is one cell with two identical copies of DNA.
Answer: A) one cell with two identical copies of DNA
Explanation: Mitosis is a process of cell division that occurs in somatic cells (non-reproductive cells). It involves a series of steps that result in the formation of two identical daughter cells.
During mitosis, the parent cell undergoes several stages: prophase, metaphase, anaphase, and telophase. In prophase, the DNA condenses into visible chromosomes, and the nuclear membrane begins to break down. In metaphase, the chromosomes align in the middle of the cell. In anaphase, the sister chromatids separate and move towards opposite poles of the cell. Finally, in telophase, the nuclear membranes reform around each set of chromosomes, and the cell begins to divide.
At the end of mitosis, each daughter cell contains the same number and type of chromosomes as the parent cell. This means that each daughter cell has an identical copy of the parent cell's DNA. The division of the cytoplasm then occurs in a process called cytokinesis, resulting in two separate daughter cells.
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Overhead view of mountains and rivers. Label B is at smaller flows of water that meet to create a larger flow of water at Label A.
Use the drop-down menu to identify what each label shows.
A
✔ river
B
✔ tributary
The diagram Illustrated shows that A is a river and B is a tributary.
What is a river?A river is a body of water that resembles a ribbon and moves downward under the influence of gravity. A river may be both wide and deep or it may be only shallow enough to wade across.
A stream or river that empties into a larger stream, main stem river, or lake is referred to as a tributary or affluent. A tributary does not empty into the sea or the ocean directly. The surrounding drainage basin is drained of its surface water and groundwater by tributaries and the main stem river, which discharges the water into the ocean.
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What are the advantages of external fertilization? Select all that apply.
higher survival rates
produces many offspring
increased genetic variation
environment dictates success of fertilization
Answer: increased genetic variation
Explanation:
True or False: Cells grow larger and that is why organisms grow larger.
Answer:
When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more cells.
Explanation:
What conditions are needed do an accurate radiometric date to be obtained form a mineral sample?
Answer:
There are several conditions that are needed for an accurate radiometric date to be obtained from a mineral sample. These include:
The mineral must be a suitable type for radiometric dating. Some minerals are more suitable for radiometric dating than others due to their chemical composition and the type of radioactive isotope they contain.
The mineral must be in a closed system. This means that the mineral must not have exchanged any atoms with its surroundings since it formed. If atoms have entered or exited the mineral, it will not give an accurate radiometric date.
The mineral must be pure. If the mineral sample contains contaminants or impurities, it will not give an accurate radiometric date.
The mineral must be free of any damage or alteration. If the mineral has been damaged or altered in any way, it will not give an accurate radiometric date.
The mineral must be properly prepared and analyzed. The sample must be carefully prepared and analyzed using specialized equipment and techniques to ensure accuracy.
Overall, to obtain an accurate radiometric date from a mineral sample, it is important to ensure that the mineral is a suitable type, is in a closed system, is pure, is free of any damage or alteration, and is properly prepared and analyzed.
Explanation:
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Which of the following can be affected by a change in the Earth's
climate?
Select one:
1, Weather
2, Plants and animals
3, All of these can be affected
4, Ecosystems
Answer:
All of these can be affected
Explanation:
A change in the Earth's climate can have a number of impacts on the planet and its inhabitants. Weather is a key aspect of climate, and a change in climate can lead to changes in patterns of weather, such as changes in the frequency or intensity of storms, droughts, or other extreme weather events. These changes can have significant impacts on plants and animals, as they may be adapted to specific types of weather and climate conditions. Ecosystems, which are complex systems of interacting plants, animals, and other organisms, can also be affected by changes in climate, as these changes can alter the relationships between different species and the availability of resources. Overall, climate change can have a range of impacts on the Earth and its inhabitants, and understanding these impacts is an important part of addressing this global challenge.
What might happen if
too much water moved into a cell?
Answer: Cytolysis
Explanation:
Cytolysis is the act of a cell exploding due to that has caused excess water to diffuse into the cell.
Maribel brings her backpack to the lab. She is also given a set of lab materials. What is the safest way for Maribel to organize these items in the lab?
Both the personal items and the lab materials should be arranged neatly along the edge of the table.
mkaqvzcdwp how many types of plants are there
Answer:
There are more than 60 types of plants
Explanation:
Hope it helps you
PLS RATE AS BRAINLIEST ANSWER
what type of transport is used for glucose in blood and intenstinal cells
Use the scenario to answer the question.
A student decides to test the effects of watering on plants. She chooses 6 tomato plants and places all of them in the same part of a garden with plenty of space between them. They get the same amount of sunlight and the same amount of fertilizer each day. She gives each plant a different amount of water, with the first plant getting no water and the others getting 200 mL, 400 mL, 600 mL, 800 mL, and 1,000 mL. She records the total height of the plants each day for 3 weeks.
What is the independent variable in this experiment?
Amount of water would be the independent variable in this case.
What is Independent variable?An independent variable is a factor that you deliberately change or control to see what effect it has. Variables that respond to changes in the independent variable are called dependent variables. It depends on the independent variable. Independent variables are plotted on the x-axis.
In a scientific experiment, an independent variable is a variable that is altered or under control. It symbolizes the root cause or motivation behind a result.
The variables that the investigator modifies to test their dependent variable are known as independent variables. The dependent variable changes as a direct result of changes in the independent variable.
Therefore, Amount of water would be the independent variable in this case.
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Smooth
Smooth
O
Smooth
A.
Smooth
o
Smooth
X
X
Wrinkled
It is true only in the plant world.
Smooth
Smooth
Based on the information above, what would a geneticist say about the example of the
pea plants?
Smooth
Wrinkled
B.
It is based purely on chance.
C. It has no relationship to human transmission of traits.
D. It helps show transmission of traits from parents to offspring.
E. It is too dated to have application in today's world.
Mendel's tests on the pea plant are still relevant today since they demonstrate how traits are passed down through generations, hence option D is correct.
What are pea plant traits?The pea experiment is frequently used in classrooms because peas have distinguishable qualities and it is relatively straightforward to analyze how these traits are inherited.
When a person possesses a dominant characteristic and is heterozygous for that trait, the descendants of that person might also possess a recessive trait.
Therefore, It helps show the transmission of traits from parents to offspring.
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1. What other process can you think of that is similar to the journey of a signal through the neuron? For
example, a relay race can be similar to a neuron passing the baton to another neuron. Think of another
example and explain how.
Neurons are similar to other cells in body because: Neurons are surrounded by cell membrane. Neurons have nucleus that contains genes. It contain cytoplasm, mitochondria and other organelles.
what are neural signals?
Information from one neuron flows to another neuron across small gap called a synapse (SIN-aps). At synapse, electrical signals are translated into chemical signals in order to cross the gap. Once on other side, the signal becomes electrical again.
The transfer of information from neuron to neuron takes place through release of chemical substances into the space between axon and the dendrites. These chemicals are called neurotransmitters, and process is called neurotransmission. The space between the axon and dendrites is called the synapse
Neurotransmitter release from presynaptic terminal consists of a series of intricate steps:
1) depolarization of the terminal membrane
2) activation of voltage-gated Ca2+ channels
3) Ca2+ entry
4) a change in conformation of docking proteins
5) fusion of the vesicle to the plasma membrane
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A hypothesis that is scientific must have a test for proving it
Answer:
True
Explanation:
If it is a scientific hypothesis, then it has to be tested.
I dont understand what it means. Please help, and if you can give some examples on what im supposed to do that will be great :)
According to the information, we have to draw two branches from Cephalopoda to classificate new orders. Also, we have to draw one branch from each order to mention their common names.
How to organizate the information?
To organizate the information in a good way, we have to identify the brach of Mollusks and then, we have to understand how is the organization of each classification.
We have to follow the instructions, so we have to draw three branches from Mollusks to classificate Cephalopoda, Gastropoda and Bivalve. Once we did that, we must to draw two branches from Cephalopoda to classificate new orders (Octopoda and Teuthida). Finally, we have to draw one branch from each one to mention their common names.
Note: This question is incomplete because there is some information missing. Here is the complete information.
Graph attached
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Pentane with molecular formula C5H12, exists in three isomeric forms. One shows linear carbon chains, another has one -CH3 groups present on the third carbon atom, and the third has two -CH3 groups present on the second carbon atom. What types of isomers are these?
A.
Geometric isomers
B.
Structural isomers
C.
Halotropic isomers
The types of isomers present in Pentane with molecular formula C5H12 are Structural isomers, option B.
What is Structural Isomerism?Structural isomers are isomers in which the atoms are completely different in order but have the same molecular formulas. Structural isomerism occurs when molecules have the same molecular formula but a different structural formula.
Different types of structural isomerism include chain isomerism, position isomerism, and functional group isomerism. C5H12 exists as three chain isomers, one -CH3 groups and two -CH3 groups. Because more branched isomers have weaker Van der Waals forces and thus lower boiling points, chain isomers have similar chemical properties but different physical properties.
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can you help with this
In the given question original DNA sequence has amino acid sequence methionine, tryptophan, asparagine, arginine, cysteine, and stop codon, so a mutation in 1 sequence: Transition, 2: Transition, and 3: Transversion.
How does a mutation in the DNA change the protein structure?In the first DNA sequence, the transition mutation changes the amino acid sequence of protein into methionine, stop, asparagine, arginine, and cysteine.
The second amino acid sequence after mutation is methionine, leucine, glutamine, proline, and leucine.
The third amino acid sequence after mutation is methionine, tryptophan, threonine, and alanine.
Therefore, a mutation in the DNA changes the amino acid sequence, which changes the structure and function of the protein.
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cause of supraventricular tachycardia?
Superventricular tachycardia occurs when the system that controls your heart rhythm is not working properly.
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Changing the Earth's climate results in:
Select one:
1, Rising sea levels
2, Irregular weather patterns
3, All of these
4, Melting ice caps
Answer:
All of these
Explanation:
Changing the Earth's climate can have a number of impacts on the planet and its inhabitants. One potential effect is rising sea levels, as a warmer climate can cause the polar ice caps to melt, increasing the amount of water in the oceans. This can lead to flooding and other coastal hazards. Another effect of climate change is irregular weather patterns, as a changing climate can alter the frequency and intensity of storms, droughts, and other extreme weather events. This can have significant impacts on agriculture, natural systems, and human communities. Finally, changing the Earth's climate can also result in melting ice caps, as rising temperatures can cause the polar ice caps to melt and contribute to rising sea levels. Overall, climate change can have a range of impacts on the Earth and its inhabitants, and understanding these impacts is an important part of addressing this global challenge.
HELP I AM CONF'usSED URGENT
determined by evolution, have evolved
what is the name of a misfolded protein?
how is the information between our dna structured
The similarly alongside the cladogram you move,the greater variations in DNA the organisms have compared to the common ancestor.
What is cladogram?A cladogram has been an evolutionary tree that diagrams the ancestral relationships amongst organisms. DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.
Analogies structure has been body parts that have a similar function but differ in structure. All vertebrate embryos have a tail and gill slits at some point during embryonic development.
Therefore, The similarly alongside the cladogram you move,the greater variations in DNA the organisms have compared to the common ancestor.
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Ocean currents have a direct effect on climate by an interaction of which systems? (1 point)
O hydrosphere and atmosphere
O geosphere and biosphere
O geosphere and atmosphere
O biosphere and atmosphere
Ocean currents have a direct effect on climate by an interaction of ' geosphere and atmosphere'.
What is the atmosphere?
The atmosphere is basically the layer of gases surrounding the Earth. It is composed of nitrogen (78%), oxygen (21%), and trace amounts of other gases, such as argon, carbon dioxide, and water vapor. The atmosphere protects us from the sun's harmful ultraviolet radiation, helps keep temperatures moderate, and creates the weather patterns that make life possible.
Ocean currents act as a bridge between the atmosphere and the geosphere, transferring heat, moisture, and momentum between the two. This helps to regulate the global climate by moving warm water from the equator to higher latitudes and vice versa. This in turn affects air masses, cloud formation, and precipitation patterns, which can have a great impact on the climate. For example, warm ocean currents can strengthen cyclones, while cold currents can help prevent them. In addition, ocean currents can influence the rate at which heat is absorbed and released into the atmosphere, which can lead to extreme weather events like heat waves and droughts.
Hence, Option C is correct.
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Answer:
A) Hydrosphere and atmosphere
Explanation:
Took the quick check :)
Based on the following reactions who many not have been listening to your thoughts on recycling?
A. "These are some great ideas. We should try to get more towns to follow this plan."
B. "I did not understand your idea about adding more recycling pick up days. Can you explain that again?"
C. "That's good."
D. "You have some good ideas, but remember, not all plastics can be recycled."
Answer:
C; thats good
Explanation:
Hope this helps!
Identify a dependent variable measured in the researcher’s experiment. Identify one control that the researcher could use to improve the validity of the experiment. Justify the researcher analyzing blood samples at many intermediate time points instead of at only the beginning and the end of the 20-week period.
Answer:
The dependent variable measured in the researcher’s experiment is the concentration of the drug in the blood samples. One control that the researcher could use to improve the validity of the experiment is to ensure that the same amount of the drug is administered to each participant.
Analyzing blood samples at many intermediate time points instead of at only the beginning and the end of the 20-week period allows the researcher to track changes in the concentration of the drug over time. This gives a more accurate picture of how the drug is metabolized by the body and how it affects the participants.
Explanation:
A deer eats a leaf from a tree and gets energy from sugar molecules in the leaf. Which two organelles are required to make this process possible? Pls help thank u so much
Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
What is the function of mitochondria and chloroplast?Mitochondria are organelles found in the cytoplasm of eukaryotic cells and are responsible for generating the majority of the cell's energy. They do this through a process called cellular respiration, in which sugar molecules are broken down and the energy released is used to produce molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.
Chloroplasts are organelles found in the cells of plants, algae and some other organisms that absorb light energy and convert it into chemical energy. They are only found in the cells that have green pigments called chlorophyll. Chloroplasts are the site of photosynthesis, the process by which plants and other organisms convert light energy into chemical energy by using carbon dioxide and water to produce glucose and oxygen.
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Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
What are Organelles?The majority of the energy produced by eukaryotic cells is produced by mitochondria, which are organelles that can be found in the cytoplasm of these cells.
Through a process known as cellular respiration, sugar molecules are broken down and the energy released is used to form molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.
In the cells of plants, algae, and certain other species, there are organelles called chloroplasts that collect light energy and transform it into chemical energy.
Therefore, Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
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pls help me I am rlly confused
All of an organism's characteristics are inheritable which evolves over millions of years. An example of this is the modern day horse's foot.
What is Evolution?This is referred to as the change in the heritable characteristics of biological populations over successive generations.
All an organism's characteristics can be inherited and evolves over a period of time as a result of the changing environmental conditions which helps them to adjust thereby increasing their chances of survival hence preventing extinction of species.
For example, over millions of years of evolution, many horses lost their side toes and developed a single hoof as a result of them needing to move at faster speeds to evade predators.
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