Answer:
The correct answer is - reuptake.
Explanation:
The process that reabsorbs the neurotransmitters known as reuptake which reduced the number of neurotransmitter molecules. Neurotransmitter transporter found on the outer membrane of the plasma membrane assists the process of reuptake by reabsorbing the neurotransmitter molecules from the specific synaptic gap. Neurotransmitters recycle by this process in order to reuse again after a time for the particular signal to last.
Thus, the correct answer is - reuptake.
Complete the sentence. Lobbyists of ______________ use access to political leaders and other federal members to attempt to influence environmental policy.
the courts
Congress
interest groups
the presidency
Lobbyists of interest groups use access to political leaders and other federal members to attempt to influence the environmental policy. Hence, correct option is C.
Environmental policy: What is it?An environmental policy can be defined as any standard that a government, business, or other public or private institution uses to link environmental concerns to human activity.
By interfering with political leaders and other federal members with the help of their interest organizations, someone who is employed, contracts for economic considerations, and is paid makes a considerable effort to affect environmental policy.
Such lobbyists routinely employ this technique to change environmental legislation in some way, either directly or inadvertently.
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EUKARYOTES VS PROKARYOTES
Directions: Drag the term prokaryote or eukaryote to the box that it applies to. If the
concept or structure applies to both eukaryotes & prokaryotes, drag the 'both' box.
Read the code from left to right to unlock the next section. You will have extras.
The correct match of each statement with its term is as follows:
Has ribosomes - Both eukaryotes and prokaryotesContains linear chromosomes - eukaryotesArchaeans - prokaryotesHas lysosomes - eukaryotescontains plasmids - prokaryoteshas a cell membrane - both eukaryotes and prokaryotesWhat are eukaryotes and prokaryotes?Eukaryotes are any of the single-celled or multicellular organisms of the taxonomic domain Eukaryota, whose cells contain at least one distinct nucleus.
On the other hand, prokaryotes are organisms whose cell (or cells) are characterized by the absence of a nucleus or any other membrane-bound organelles.
Eukaryotes and prokaryotes both contain cell membranes and ribosomes. However, only eukaryotes contains linear chromosomes compared to the circular chromosomes in their counterpart, lysosomes in their cells etc.
Archaeans are prokaryotic organisms similar to bacteria but are more adapted to extreme conditions.
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A studen is completing a Punnett square for trait (X/x) that is autosomal and inherited by the dominant allele. The father does not have it but the mother does. If they have two children, a son and a daughter, what would the completed Punnett square look like
In the observation, there is a 50% chance for each child to inherit the trait, (X/x) that is autosomal and inherited by the dominant allele.
What is autosomal dominant inheritance?Autosomal dominant inheritance is the way of passing genetic traits from parents to children.
The cross between Xx and xx.
Creating offspring with having 50% probability of having this character.
While the father xx lacks the feature, the mother XX does.
The cross is attached in the image below.
There are only two genotypes, Xx and xx, which occur equally frequently.
Therefore, the children have a 50% chance of inheriting the characteristic.
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Compare the amount of kinetic energy of particles in each state of matter.
Solids have the lowest kinetic energy so vibrate very little, Liquids have more kinetic energy so particles slide past each other while Gases have the most kinetic energy so fly around in the air.
What is matter?Matter is anything that takes up space and can be weighed. Matter has volume and mass.
Therefore matter is something that takes up space and has a mass. The three states of matter are solid, liquid and gaseous. Physical transition includes the conversion of a material from one state of matter to another without changing it's chemical composition.
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Which of the following is not a method of chromosomal sex determination that occurs in nature?
a) In birds, the mother's sex chromosomes determine the sex of the offspring.
b) In sea turtles, eggs laid in hot sand become females and eggs laid in cooler sand become males
c) In humans, the presence of a Y chromosome makes an individual male, even if he also possesses two chromosomes.
d) In bees, the eggs that the queen allows to be fertilized become females and the eggs she doesn't fertilize become males.
e) All of the above are naturally occurring examples of sex determination.
The examples of sex determination given above all occur naturally.
What are sex identification techniques?In mammals, sex is determined by the male Y chromosome. In placental mammals, sex is determined by the presence of the Y chromosome. Cells from females typically have two X chromosomes, while cells from males typically have an X and a Y chromosome.
What are the three different ways to determine sex?Sex can be broadly divided into three categories: genotypic sex, phenotypic sex, and gender. Genotypic sex particularly refers to a person's two sex chromosomes. Most humans have either an X and a Y chromosome or two X chromosomes (genotypic female) (genotypic male).
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Which of the following organisms would lose the most water by osmosis across its gills?
a. marine bony fish
b. shark
c. freshwater bony fish
d. freshwater invertebrate
The most water would be lost via osmosis through the gills of marine bony fish.
Osmoconformers actively or passively adjust their body osmolarity to their surroundings. Despite having an ionic composition that may be different from that of saltwater, the majority of marine invertebrates are osmoconformers. Osmoregulators are more prevalent in the animal kingdom and strictly control their body osmolarity, which is constant at all times. Despite the salt concentrations in the environment, osmoregulators actively regulate salt concentrations. Freshwater fish is one illustration.
To thrive in a variety of aquatic conditions, some fish have developed osmoregulatory mechanisms. Sharks are cartilaginous fish having a salt-secreting rectal gland that helps with osmoregulation.
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in a certain species of lizard, there are two alleles for eye color, and eyes can be either black or yellow. the black allele shows simple dominance over the yellow allele. two black eyed lizards are crossed, and the result is 72 black eyed lizards and 28 yellow-eyed lizards. your hypothesis is the black-eyed parents were bb x bb. assume that eye color is an autosomal trait in this species.
Your hypothesis that the black-eyed parents were bb x bb is correct. since the phenotype is only the observable trait and it does not reflect the underlying genotype.
This is because the black allele showing simple dominance over the yellow allele means that when two dominant black alleles (bb) are present, the resulting offspring will also have black eyes. In this case, the cross would produce a genotype ratio of 100% BB (black eyes) and 0% bb (yellow eyes) among the offspring. This genotype ratio is consistent with the observed phenotype ratio of 72 black eyed lizards and 28 yellow-eyed lizards.It is important to note that the phenotype ratio (72:28) does not match the genotype ratio (100:0) since the phenotype is only the observable trait and it does not reflect the underlying genotype.
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What does this graph tell us about the cost of tails for males and female preference?
O a. Longer and more elaborate tails cost more to make and maintain, but they cost relatively more for higher-quality males. Females prefer shorter tails, so mating success decreases as a function of tail length O b. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for higher-quality males. Females prefer longer tails, so mating success increases as a function of tail length O c. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for lower-quality males. Females prefer longer tails, so lower-quality males can increase their reproductive success with longer tails.
O d. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for lower-quality males. Females prefer tails of medium length, so lower-quality males can increase their reproductive success with longer tails.
This graph tell us about the cost of tails for males and female preference that longer and more elaborate tails cost more to make and maintain, but they cost relatively less for higher-quality males.
The phrase "tail length" refers to the length of the tail as measured in a straight line from the first abdominal segment's anterior edge to its terminal section.
The length of poly(A) tails found in vivo is probably influenced by the rivalry between synthesis and degradation since poly(A) tail synthesis has not been proven to have any inherent length limitations. The interaction of poly(A) polymerase with other proteins that influence its activity can change the equilibrium.
Complete question:
What does this graph tell us about the cost of tails for males and female preference?
O a. Longer and more elaborate tails cost more to make and maintain, but they cost relatively more for higher-quality males. Females prefer shorter tails, so mating success decreases as a function of tail length O b. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for higher-quality males. Females prefer longer tails, so mating success increases as a function of tail length O c. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for lower-quality males. Females prefer longer tails, so lower-quality males can increase their reproductive success with longer tails.
O d. Longer and more elaborate tails cost more to make and maintain, but they cost relatively less for lower-quality males. Females prefer tails of medium length, so lower-quality males can increase their reproductive success with longer tails.
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Which of the following is not one of the steps of the PCR cycle?
a. The sample is heated to 72 degrees Celsius and DNA polymerase synthesizes new copies of DNA.
b. The sample is heated to about 95 degrees Celsius to separate the strands, so they can be replicated.
c. The sample is cooled to about 10 degrees Celsius to deactivate the DNA polymerase until the next step is ready.
d. The sample is cooled to about 50 degrees Celsius and the primers can bind to the single DNA strands.
Option C is correct. Cooling the sample to about 10 degrees Celsius to deactivate the DNA polymerase is not one of the steps of a PCR cycle.
The Polymerase Chain Reaction (PCR) involves choosing a portion of the genome to be amplified utilizing short synthetic Fragments of DNA called primers, and amplifying that segment using several rounds of DNA synthesis.
There is three easy phases of every DNA synthesis reaction
(1) denaturing the template into single strands;
(2) annealing primers to each template DNA strand for new strand synthesis; and
(3) extending the new DNA strands from the primers.
In PCR, DNA is heated to a temperature of 94–98°C to denature it into single strands.
Then cooled to a temperature of 50–64°C to allow primer binding.
And finally raised to a temperature of 72–80°C to enable the polymerase to synthesis the complementary strand to produce double-stranded DNA.
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The____________ produced by photosynthesis was toxic to many early organisms.
a.Carbon
b.Carbon Dioxide
c.Hydrogen
d.Oxygen
Answer:
I am pretty sure it was Oxygen.
Explanation:
2 billion years ago, when earth was supposedly formed, the atmosphere had slowly been altered by the gradual addition of oxygen, which proved to be fatal to the most common type of organism present on Earth at the time. {Sorry if it isn't correct.}
Answer:
D.Oxygen
Explanation:
Oxygen was proven to be fatal to the most common type of organisms present on the Earth at the time.
LIMITED TIME!!!! HELP PLEASE!!
The biological species concept emphasizes whether populations
Select one:
can mate with each other.
look the same
have similar ecological requirements.
share common ancestry.
A scientist sets up an experiment to test which fertilizer has the best effect on increasing fruit size in a single variety of avocado trees. They grow one group of avocado trees using Fertilizer-A, one group using Fertilizer-B, one group using Fertilizer-C, and one group grown without any fertilizer. All the avocado trees are given the same amount of water and sunlight, and they are all grown during the same period of time. Which of the following is the independent variable in this experiment?
the type of fertilizer used
the size of the avocados
the amount of water,sunlight, and time
the amount of water only
Independent variables affect the dependent one. The researcher changes it to analyze how the dependent variable behaves when the independent one changes. The independent variable is the type of fertilizer (A, B, and C)
What is the independent variable?
Usually, when performing experiments, researchers must define the variables affecting the experiment. These are,
Dependent variablesIndependent variablesConstant variablesIndependent variables are the ones that influence or cause an effect on another variable.
The researcher is interested in knowing how the independent variable affects the dependent one, so changes the first one to observe how different values or states provoke a change in the other variable.
In the exposed example, the scientist wants to know which fertilizer has the best effect on fruit size.
Independent variable ⇒ fertilizers ⇒ Fertilizer-A, Fertilizer-B, Fertilizer-C. Fertilizers influence or affect the fruit size. Dependent variable ⇒ Fruit size ⇒ It changes according to the fertilizer.Constant variables ⇒ amount of water and sunlight, and growth period of time.You can learn more about independent variables at
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Which of the following statements about the heart is false?
a. The mitral valve separates the left ventricle from the left atrium.
b. Blood travels through the bicuspid valve to the left atrium.
c. Both the aortic and the pulmonary valves are semilunar valves.
d. The mitral valve is an atrioventricular valve.
The following assertions about the heart are untrue. The bicuspid valve allows blood to pass from the right atrium to the left.
Which of the following descriptions of the heart is accurate?The right ventricle pumps deoxygenated blood to the lungs while the left ventricle receives oxygenated blood from various body parts while the right atrium receives both types of blood as the left ventricle pumps oxygenated blood to various body parts.
The mitral valve divides which areas of the heart?The left atrium and left ventricle are where the mitral valve is located. Between the left ventricle and aorta is where the aortic valve is located.
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Which of the following occurs as an enzyme produced by a cell is secreted from the cell? A. Phagocytosis B. Exocytosis C. Endocytosis D. Receptor-mediated endocytosis E. Pinocytosis
Through a process known as exocytosis, a body secretes its enzyme. Exocytosis is the process by which large molecules are transported within the bilayer to the exterior.
What happens during exocytosis?Secretory vesicles fuse with the plasma membrane during exocytosis in order to discharge entire contents into extracellular space and integrate new protein and lipid molecules into the plasma membrane.
Define exocytosis with an illustration.Exocytosis is the process by which a cell moves secretory substances through the cytoplasm to the cell surface. To package secretory products, spheres containing cell transport vesicles are employed. Here are a few examples of cellular secretory products: peptide hormones, antigens that are released as proteins, and proteins.
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Taye, an eight-year-old boy, suddenly begins to complain of terrible abdominal cramps. His mother notes that he has a fever, and he begins to experience vomiting and diarrhea. Concerned because it seems to have come on so quickly, Taye’s mother takes him to the pediatrician. As he examines Taye and listens to the description of his symptoms, the pediatrician notes that it almost sounds like a salmonella poisoning to him. He asks Taye and his mother a few more questions to help him narrow down the cause. Considering that he suspects salmonella, which question would the pediatrician MOST likely ask Taye?
A.
Have you been eating a lot of ribeye steaks?
B.
Have you been playing in old barns or outbuildings?
C.
Do you have a turtle or snake at home?
D.
Have you recently traveled to a foreign country?
Answer:
UnlockUnlockUnlock
Explanation:
The question the pediatrician would MOST likely ask Taye, suspecting salmonella poisoning, is: C. Do you have a turtle or snake at home?
What is salmonella poisoning?Salmonella poisoning, also known as salmonellosis, is an infection caused by the bacteria of the Salmonella genus. It is typically contracted by consuming contaminated food or water, or by direct contact with infected animals or their environment.
Salmonella bacteria can be found in various raw or undercooked foods, especially eggs, poultry, meat, and dairy products. When ingested, the bacteria can cause gastrointestinal symptoms such as abdominal cramps, diarrhea, vomiting, and fever. The severity of the symptoms can vary from mild to severe, depending on the individual's immune system and the specific strain of Salmonella involved.
The infection usually resolves on its own within a week, but in some cases, it can lead to complications such as dehydration, bloodstream infection, or spread to other organs. Infants, young children, elderly individuals, and those with weakened immune systems are particularly vulnerable to severe complications.
Preventing salmonella poisoning involves practicing good hygiene, proper food handling and preparation, thorough cooking of foods, and avoiding cross-contamination between raw and cooked foods.
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Explain why leeches are not pathogens?
The salinity of a small inland lake has recently started to increase. Researchers are planning to investigate how freshwater organisms survive significant following physiological mechanisms will the researchers most likely observe among the surviving organisms in the lake?
a. Prokaryotic organisms will use various mechanisms to counter act swelling of cels as a result of increased water uptake
b. Single-celled organisms will use various mechanisms to counteract the increased flow of water from cells to the environment
c. Eukaryotic organisms will use various mechanisms to counteract the diffusion of positively charged ions across the cell membrane
d. Multicellular organisms will use various mechanisms to counteract the loss of cell adhesion as a result of calcium deficiencies
Single-celled organisms will use various mechanisms to counteract the increased flow of water from cells to the environment is the correct answer.
Halophiles are organisms that can survive in extremely salty environments. Due to the harsh conditions they endure on Earth, halophiles are regarded as extremophiles.
The physiological mechanisms used by creatures that survive in salty environments allow them to adjust their water flow from cells to their surroundings. Since the other physiological processes of organisms can be affected by the increased water flow, bacteria have developed a technique to combat the increased water flow.
As a result, Option-B is the right response.
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1 Answer:
The greenhouse effect occurs when
a. cooling towers malfunction.
b. radiated heat from the Earth is absorbed by the atmosphere.
c. steam heating systems are used.
d. ultraviolet light is absorbed by the atmosphere.
2 Answer:
When steam condenses
a. it changes from the gas phase to the liquid phase.
b. it gives off heat.
c. molecules move closer together.
d. all of the above occur.
3 Answer:
In a solar heating system, heat is transferred to water in a storage
tank by means of a
a. cooling tower.
b. solar collector.
c. heat exchanger.
d. radiator.
4 Answer:
In a radiant electric system, heat is produced from
a. electric resistance in cables or wires.
b. thermostats.
c. heat pumps.
d. packed fiberglass.
5 Answer:
Weatherstripping prevents heat loss by
a. lessening evaporation.
b. reducing convection and conduction.
c. preventing condensation.
d. increasing radiation.
6 Answer:
Which of the following is not part of a cooling system?
a. storage tank
b. refrigerant
c. compressor
d. cooling tower
7 Answer:
In which stroke of a four-stroke engine does a spark plug ignite the
gas?
a. intake
b. compression
c. power
d. exhaust
8 Answer:
A diesel engine
a. uses only air during the intake stroke.
b. is an external-combustion engine.
c. uses a spark plug to ignite fuel.
d. uses Freon.
9 Answer:
A cooling tower
a. is controlled by a thermostat.
b. cools water as it flows through pipes.
c. cools water through insulation.
d. causes thermal pollution.
10 Answer:
In passive solar heating,
a. buildings have pipes to circulate hot water.
b. a heat exchanger is needed.
c. buildings are heated directly by the sun.
d. a solar collector absorbs sunlight.
(1) The usage of steam heating systems causes the greenhouse effect.
(2) Heat is released as steam condenses.
How does the greenhouse effect work?The majority of the infrared energy from the Sun is absorbed & re-emitted in all dimensions by green house gases molecule and clouds, creating the greenhouse effect. This causes the earth's atmosphere and indeed the Earth's surface to warm.
The greenhouse effect: beneficial or harmful?The positive effects of the greenhouse effect. In order to maintain life on planet, well, habitable, it warms the world to its pleasant average temperature of 59 ℉ (15 degrees Celsius). Without it, the world would resemble Mars more and be a freezing, dangerous place.
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5. Water first percolates through the LARGE PORes between Soil PARtick
7. Then, water reaches the
beneath. tummot
DOBITI
3. Eventually, the water reaches the
soil are already_
od deviath
with water.
where the rocks and
5.) Water first percolates through the soil
7.) Then, water reaches the rocks beneath.
3.) Eventually, the water reaches the water where the rocks and soil are already saturated with water.
What is water ?Water can be defined as a universal solvent that is characterized by being odourless, tasteless and colourless and which is chemical made up of hydrogen and oxygen molecules.
When water is allowed to pass through the soil which is porous, it percolates through it to the rocks beneath the upper layers of the soil.
The movement of water through the soil is said to be saturated when there is no net movement of water through the soil.
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Complete question:
5.) Water first percolates through the ______
7.) Then, water reaches the ____ beneath.
3.) Eventually, the water reaches the ____ where the rocks and soil are already ____ with water.
Which of the following could occur only after plants moved from the oceans to land?
A) Animals could also move onto land because there were opportunities for new food sources. B) Animals could also move onto land because they had easier access to nitrogen.
C) Cyanobacteria could also move onto land because their host plants occurred there.
D) Plants in the oceans were able to evolve forms that lived in much deeper parts of the oceans.
Answer:
A
Explanation:
The change in Gibbs free energy for a particular reaction is MOST useful in determining
A) the amount of energy catalysts required for biosynthesis or catabolism.
B) the potential metabolic reaction rate.
C) whether there will be a requirement or production of energy.
D) energy stored in each compound.
When deciding whether energy will be created or used, the variation in free binding energy for a certain process is MOST useful.
What makes it free energy?Gibb's natural energy is often called free energy because it is always available. The reaction can acquire this energy if necessary without making any effort. To calculate the fluctuation in Gibb's free energy, enthalpy and the system's warm-entropy product are added.
What does ATP's free energy do?Normal circumstances result in the release of Gibbs free energy during the glycolysis reaction between glucose and oxygen. Energy is liberated since this reaction is exergonic. To exhaust this free energy, this reaction works in conjunction with other bodily processes.
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Which of the following mechanisms of controlling _ gene expression occurs outside of the nucleus? O adding cap and tail to RNA O DNA packingfunpacking O translation O RNA splicing
RNA splicing occurs outside of the nucleus.
The correct option is D.
RNA requires three different ways for translation, reading, and decoding. I would suggest that the cytoplasm, not the nucleus, should be the location of this awkwardly using RNA to help translation process. This splicing technique is appropriate. During this process, immature RNA is generated. They are immature. The nucleus is another location where this RNA slicing process occurs. That is the appropriate response. Translation is an extracellular process since it happens outside of the nucleus.
To hasten the translation of pre-mRNA into mRNA that codes for proteins, RNA splicing assembles the protein-coding regions (exons) and eliminates the intermediate, non-coding portions of genes (introns). Pre-mRNA splicing is a crucial step in the synthesis of mammalian genes and also significantly contributes to the variety of proteins. Since most genes undergo pre-mRNA splicing, most biological functions rely on properly functioning spliceosomes.
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18. Using the video, build the protein using the given DNA sequence. What is the final amino acid sequence?
Important: Be sure to write each correct amino acid before clicking, as it will disappear!
The sequence of amino acids that will be synthesized from a DNA or mRNA sequence can be determined using the codon table.
What does DNA do, and why?The information molecule is DNA. It contains the design specifications necessary to produce proteins, another type of large molecule. These instructions are spread out along 46 long structures called chromosomes and are present in each of your cells. Each of these chromosomes is composed of several smaller DNA pieces called genes.
What does DNA remain in?Cellular DNA
Although the cell nucleus (where it is known as nuclear DNA) houses the majority of DNA, a small amount can also be discovered there (where it is called mitochondrial DNA or mtDNA). Cell organelles called mitochondria (Figure 5) convert dietary energy into a form that cells can use.
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LIMITED TIME!!! HELP QUICK!!!!
The biological species concept emphasizes whether populations
Select one:
can mate with each other.
look the same
have similar ecological requirements.
share common ancestry.
Answer:
have similar elocogical requirements
How is the DNA in a prokaryote different from the DNA in a eukaryote?
Answer:
Prokaryotes contain circular DNA in addition to smaller, transferable DNA plasmids. Eukaryotic cells contain mitochondrial DNA in addition to nuclear DNA. Eukaryotes separate replicated chromosomes by mitosis, using cytoskeletal proteins, whereas prokaryotes divide more simply via binary fission
Answer:
A major difference between eukaryotes and prokaryotes is the presence of mitochondria DNA (mtDNA) in eukaryotes .
ORGANELLE PRACTICE
Directions: Drag the correct organelle to the column on the right. Your code will be the
numbers read from top to bottom. You will have extra terms.
1 Smooth ER 2 Golgi 3 Lysosomes 4 Rough ER
1 Smooth ER 2 Golgi 3 Lysosomes 4 Rough ER
membrane-enclosed sacs that contain hydrolytic enzymes
Functions include the correct folding and chemical modification of
newly synthesized proteins
associated with membrane-bound ribosomes
Function includes storage and release of macromolecules
important in intracellular digestion
functions include detoxification and lipid synthesis
5 Vacuole
5 Vacuole
Answer:
3,4,4,5,3,3,1 (answers in order to the picture attached)
Small regulatory RNA can regulate gene expression by:
Select all that apply.
inhibiting rRNA synthesis.
inhibiting RNA splicing.
degrading RNA transcripts.
inhibiting translation.
altering chromatin conformation.
Small regulatory RNA can regulate gene expression by inhibiting rRNA synthesis. So the correct option (a).
Multiple RNABPs41 work together to regulate RNA by binding to 'core' and 'auxiliary' elements, which are necessary for and modify pre-mRNA processing steps, respectively. Exons and the sequences necessary for their splicing are separated by core splicing elements.
Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are two important kinds of RNA molecules with regulatory functions, and their dysregulation has been linked to the development and progression of many human cancers.
The CsrB/C (carbon storage sRNA regulatory system)49 and 6S RNA are two well-studied examples of regulatory protein-binding sRNAs.
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LIMITED TIME!!!!! HELP!!!!!
Which of the following describes the definition of a species?
Select one:
Group of organisms whose offspring are fertile
Group of organisms that can reproduce
Group of organisms with similar characteristics
Explanation:
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Answer:
so 2
Which of the following glands are responsible for 70% of the synthesis of semen?
A) the seminal vesicles
B) the bulbourethral glands
C) the prostate
D) the pituitary
Option A) The seminal vesicles are responsible for 70% of the synthesis of semen.
Semen is a mixture of fluids that are released during ejaculation and contains sperm and other substances. The production of semen is a complex process involving several glands in the male reproductive system.
The seminal vesicles, located near the base of the bladder, produce about 70% of the fluid in semen. This fluid contains fructose, which provides energy for the sperm, and other substances such as prostaglandins and calcium.
The prostate gland, located just below the bladder and in front of the rectum, also contributes to the semen by secreting a fluid that helps to nourish and transport the sperm.
The bulbourethral glands, located below the prostate, secrete a small amount of a clear, slippery fluid that helps to lubricate the urethra and neutralize any acidity in the urethra before ejaculation.
The pituitary gland is not directly involved in semen production, it secretes hormones that regulate the other glands in the reproductive system.
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B) A green pigment present in all plants that absorbs light to provide energy for photosynthesis
Answer: A green pigment present in all plants that absorbs light to provide energy for photosynthesis is chlorophyll.
Explanation:
Chlorophyll is a green pigment found in almost all parts of plants. it is essential in the process of photosynthesis. It absorbs light in the blue and red parts of the visible spectrum, but it reflects green light.
However, as this pigment cannot absorb the green color spectrum, it tends to impart the green color to the plant tissues. CChlorophyll is located in plant cells called chloroplasts. These are special cells that are located in the thylakoid membrane compartments.
Green plants are green because they contain a pigment called chlorophyll. It absorbs certain wavelengths of light within the visible light spectrum. Chlorophyll absorbs red and blue light. There are two chlorophylls in plants that are critical for absorbing light:
chlorophyll Achlorophyll BTo learn more about chlorophyll,
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