Parasympathetic activation has what effect on pupil diameter, and through activation of which muscles?
A) constriction, circular
B) constriction, radial
C) dilation, circular
D) dilation, radial
Answers
Parasympathetic activation has the effect of constricting pupil diameter and it is achieved through activation of the circular muscles.
The parasympathetic nervous system is responsible for the “rest and digest” response, which is characterized by the constriction of the pupil. This constriction is achieved by the contraction of the circular muscles, which are located around the edge of the pupil.
Contraction of the circular muscles pulls the edge of the pupil inward, resulting in a decrease in the size of the pupil. This response allows the eye to focus on near objects, as the pupil can adjust to different levels of light intensity. The parasympathetic response is activated in response to a decrease in light intensity, or when close vision is required.
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Related Questions
In plants, most differentiated cells retain Group of answer choices a complete set of their genes and retain the ability to express those genes under certain circumstances. a complete set of their genes but lose the ability to express most of those genes. only a tiny fraction of their original set of genes. the ability to dedifferentiate but then cannot return to their original differentiated state.
Answers
Answer:
due to their excessive numbers in tissues. ... because their developmental potential is limited to certain tissues. In plants, most differentiated cells retain. A) only a tiny fraction of their original set of genes.
Explanation:
hmm i think this is your answer
The tree-based reduction approach leads to load imbalance. true or false
Answers
The given statement "The tree-based reduction approach leads to load imbalance" is false because In parallel computing, a reduction operation involves combining data from multiple processors or nodes into a single result.
The tree-based reduction approach is a common parallel reduction technique where the data is combined in a hierarchical manner, with each level of the tree combining data from the previous level. While it is true that the tree-based reduction approach can lead to load imbalance in some cases, it is not a fundamental property of the technique.
Load imbalance can occur if the data being combined at each level of the tree is not evenly distributed across processors or nodes. However, there are ways to mitigate this issue, such as dynamically reassigning work to balance the load or using load-balancing algorithms. Overall, the tree-based reduction approach is a widely used and effective technique for performing parallel reduction in distributed computing systems.
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Why was modern classification invented?
Traditional classification could not classify all living things.
Scientists realized related organisms do not share similar characteristics.
Scientists understood that species share a common ancestor.
Modern classification is faster and easier to use.
Answers
Answer:
Scientists understood that species share a common ancestor.
Explanation:
Which result will occur if transcription factors for insulin production are present in a cell?
Responses
Insulin production will slow.
Insulin will deplete in the cell.
Insulin production will stop.
Insulin will be produced.
Answers
If transcription factors for insulin production are present in a cell, insulin will be generated.
What would occur if the manufacture of insulin stopped?Cells cannot use glucose as fuel without insulin, and they would start to behave abnormally. Any additional glucose that is not utilised by the cells will be converted and stored as fat to be used as energy when blood glucose levels are too low.
What results from the creation of insulin?In reaction to the presence of insulin, the liver shows a decrease in gluconeogenesis and an increase in glycogenesis. The impact of insulin also extends to lipid and protein metabolism. In contrast, it inhibits protein breakdown and lipolysis while promoting protein synthesis and lipogenesis.
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Weathering and erosion energy source?
Answers
Answer:
The sun's heat energy
Explanation:
Scientific instruments have shown that shock waves from earthquakes move long distances.
True
or
False
PLEASE HELP ME ASAP ILL DEFINETLY GIVE U BRAINLIEST
Answers
Hope it helps!
Which of the following is not a water soluble?
- salt
- fat
- carbohydrates
- sugar
Answers
Answer:
fat yw
Explanation:
The guanosine triphosphate (GTP) cap that is added to the 5ʹ end of primary mRNA
a. contains all the coding and noncoding sequences of the DNA template.
b. provides the mRNA molecule with a poly A tail.
c. helps transfer amino acids to the ribosomes.
d. forms hydrogen bonds with the polymerase.
e. facilitates the binding of mRNA to ribosomes.
Answers
The guanosine triphosphate (GTP) cap that is added to the 5ʹ end of primary mRNA, the correct option for the given question is (e) facilitates the binding of mRNA to ribosomes.
The guanosine triphosphate (GTP) cap is a modified nucleotide structure that is added to the 5ʹ end of primary mRNA transcripts. This cap structure is essential for the proper processing and translation of mRNA molecules. The GTP cap plays a crucial role in facilitating the binding of mRNA to ribosomes during protein synthesis. This cap structure acts as a recognition signal for the ribosome, allowing it to identify and bind to the mRNA molecule. Once the ribosome has bound to the mRNA molecule, it can begin the process of translating the genetic code into a functional protein.
Therefore, the GTP cap is a critical component of the mRNA molecule and is essential for the proper function of the protein synthesis machinery. It does not contain all the coding and noncoding sequences of the DNA template, provide the mRNA molecule with a poly A tail, help transfer amino acids to the ribosomes, or form hydrogen bonds with the polymerase.
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6. which of the following does not have an endosymbiotic origin? a. ribosome b. mitochondria c. chloroplast d. nuclear envelope e. all of the above have endosymbiotic origins
Answers
The correct answer is d. nuclear envelope. The nuclear envelope does not have an endosymbiotic origin.
The nuclear envelope does not have an endosymbiotic origin. It is formed from the invagination of the cell membrane during the process of nuclear formation, which is distinct from endosymbiosis. On the other hand, the other options (a. ribosome, b. mitochondria, c. chloroplast) do have an endosymbiotic origin. Mitochondria and chloroplasts are believed to have originated from ancient endosymbiotic events where free-living bacteria were engulfed by ancestral eukaryotic cells, eventually leading to a symbiotic relationship. Ribosomes, while not organelles, have an endosymbiotic origin as well, as they are thought to have evolved from ancient free-living bacteria that were engulfed by early cells.In conclusion, while the ribosome, mitochondria, and chloroplast have endosymbiotic origins, the nuclear envelope does not.
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What sets adolescents' thinking apart from that of younger children?
A) ability to remember thoughts they have had previously
B) ability to develop a sense of right and wrong
C) ability to think beyond the concrete situation to what might or could be
D) ability to understand the concept of time
Answers
C) ability to think beyond the concrete situation to what might or could be sets adolescents' thinking apart from that of younger children. While younger children tend to think in concrete terms and focus on the present, adolescents are able to think abstractly and consider possibilities and potential outcomes in the future.
This cognitive shift is a key component of their development and allows them to engage in more complex problem-solving and decision-making. The ability to think beyond the concrete situation to what might or could be is known as abstract thinking. It involves the ability to understand and analyze concepts and ideas that are not directly tied to concrete, tangible objects or experiences. Abstract thinking allows individuals to consider hypothetical situations, solve problems using reasoning and logic, and engage in creative thinking.
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in comparison with the nervous system, the regulatory effects of the endocrine system are
Answers
In comparison with the nervous system, the regulatory effects of the endocrine system are slower and more widespread.
The endocrine system is responsible for producing and releasing hormones into the bloodstream, which then travel throughout the body to target cells and tissues. These hormones act as chemical messengers and help regulate various physiological processes, such as growth and development, metabolism, reproduction, and mood.
Unlike the nervous system, which uses electrical impulses to transmit signals rapidly, the endocrine system works more slowly. It can take seconds to minutes or even days for hormones to exert their effects. However, once released, hormones can have long-lasting effects because they remain in circulation until they are metabolized or excreted.
Furthermore, the endocrine system's effects are widespread as hormones can influence multiple organs and tissues simultaneously. In contrast, the nervous system typically has more localized effects, with signals being transmitted along specific pathways.
Overall, while the nervous system provides rapid, precise, and localized control, the endocrine system regulates processes more slowly and with a broader impact throughout the body.
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In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
Answers
Answer:
Eventually, the environment will be unable to support the production of wildebeests, this will cause there to be a loss of vegitation that then causes a food shortage, and then the wildebeests will starve.
Explanation:
It's a very unhappy process, but those herds who don't migrate to another pasture will starve and die. The death will depopulate the savanna and give the fields some time for regrowth and the cycle will begin again.
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what is hydrogen energy level
Answers
It is denote by the quantum number and where n veries from 1 for the ground state (the lowest energy level) to corresponding to unbound electrons
A female client is on hormonal replacement therapy because of hormonal imbalance. Which disorders are more likely to appear in the client?.
Answers
A female client is on hormonal replacement therapy because of hormonal imbalance. The disorders more likely to appear in the client are Premenstrual dysphoric disorder and Medication-induced depressive disorder.
What exactly is premenstrual dysphoric disorder (PMDD)?
Premenstrual dysphoric disorder (PMDD) is a more serious version of premenstrual syndrome (PMS). PMDD causes severe irritability, depression, or anxiety a week or two before your period begins.
What is Medication-induced depressive disorder?Medications that cause mania or depression appear to alter brain chemicals in some way. Even if the drugs are required to treat the condition, the side effects are unacceptably severe. Accutane, a medication used to treat acne, has been linked to depression.
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n a different plant species, flower color is controlled by two genes that contribute equally to the final flower color. plants with red flowers have the genotype: crcrdrdr, while plants with white flowers have the genotype: cwcwdwdw. a red flowering plant was mated to a white flowering plant and all of the f1 progeny had pink flowers. these pink flowered f1 plants were allowed to self-fertilize to produce f2 progeny. what is the genotype of the f1 plants that produced pink flowers?
Answers
The genotype of the F1 plants that produced pink flowers is cwcrcrdwdr. When a different plant species is being considered, flower color is controlled by two genes that equally contribute to the final flower color.
A red-flowered plant has the genotype crcrdrdr, while a white-flowered plant has the genotype cwcwdwdw.
The F1 progeny, which all had pink flowers, were produced by crossing a red-flowered plant with a white-flowered plant. The F1 plants with pink flowers are cwcrcrdwdr genotype.
Because when these two plants are crossed, their alleles are combined and then the outcome will be a pink flower. So, the F1 plants had the genotype Crcrdw, meaning that they got one red allele and one white allele from their parents.The red allele Crcr gives red color while the white allele Cwcw gives no color.
So the heterozygous genotype Crcr, Cwcw produces the pink phenotype.
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An example of a receptor in a negative feedback loop controlling body temperature would be.
Answers
An example of a receptor in a negative feedback loop that controls an organism's body temperature would be: temperature sensors on the skin that detect a stimulus.
What is a feedback loop?A feedback loop is a biological process in which the output of a system inhibits or amplifies the body system, depending on the surrounding conditions.
Generally, a feedback loop helps to regulate or maintain the body temperature or the amount of hormones secreted in the body of a living organism.
The types of feedback loop.Basically, there are two (2) main types of feedback loop and these include:
Positive feedback loop.Negative feedback loop.A negative feedback loop inhibits or decreases the response by the body system and an example of a receptor in a negative feedback loop that controls an organism's body temperature is temperature sensors located on the skin, so as to detect a stimulus.
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PLEASE ANSWER ASAP
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Answers
9514 1404 393
Answer:
17. 7.61×10³ N
18. 9.51 m/s²
19. maybe you want 29.375 N
Explanation:
17. Use the given formula for force. Fill in the masses and radius. The distance from the earth is in addition to the radius of the earth.
\(F=G\dfrac{m_1m_2}{r^2}\\\\F=(6.67\times10^{-11})\dfrac{5.97\times10^{24}\cdot 800}{((6.37+0.10)\times10^6)^2}=\dfrac{6.67\cdot5.97\cdot8.00}{6.47^2}\times10^3\\\\F=7.61\times10^3\qquad\text{newtons}\)
__
18. Make use of the relation ...
F = ma
a = F/m = (7.61×10³ N)/(800 kg)
a ≈ 9.51 m/s²
__
19. The acceleration of the runner is ...
a = ∆v/∆t = (9 m/s - 4 m/s)/(8 s) = (5/8) m/s²
The force she is applying to the ground to accelerate herself is ...
F = ma = (47 kg)(5/8 m/s²) = 29.375 N
The amount of force applied to the tape depends on its mass and the effect the tape has on the runner's acceleration. There is insufficient information in the problem statement to permit an answer to the question.
Many human diseases are genetically transmitted. Genes occur in pairs and each member of the pair can be of type A or a. The possible pairs are AA, Aa and aa, called genotypes. (Aa and aA are equivalent.) A child inherits one gene from its father and one from its mother. Assume that the gene transmitted to a child from each parent is chosen at random and with probability 0.5. In the example below, the father has the genotype Aa, and transmits A to the child. The mother has genotype aa and transmits a to the child. The child resulting genotype is Aa.
Father Mother
AA aa
child
Aa
a) Suppose the parents have genotypes Aa and aa as above. Explain why their offspring genotypes has the following distribution.
genotype probability
Aa 0.5
aa 0.5
b) The genetic disease is transmitted according to the autosomal recessive pattern: • The genotype aa is diseased and the child will die before it reproduces. • The genotype Aa is a carrier but is not diseased. • The genotype AA is not a carrier and is not diseased. i) [3 marks] If two carriers have a child, explain why their offspring genotypes has the following distribution.
genotype probability
AA 0.25
aa 0.25
Aa 0.5
b) ii) [3 marks] If the child of two carriers is not diseased, show that the probability that the child is a carrier is 2/3 .
Answers
By taking into account the potential gene combinations from the parents, this distribution is created. Each A and A gene has a 0.5 chance of being passed down from the father. One gene can only be passed from the mother.
The kid either inherits an A gene from the father and an a gene from the mother (resulting in the genotype Aa) or the child obtains an a gene from both parents (resulting in the genotype aa). These two possibilities are therefore equally likely.
a) Genotype Probability
Aa 0.5
aa 0.5
This is because there are two possible combinations when one gene is chosen randomly from each parent: Aa and aa. Each combination has an equal probability of 0.5.
b) 1) Genotype Probability
AA 0.25
aa 0.25
Aa 0.5
This distribution arises from the possible combinations when one gene is chosen randomly from each parent: AA, aa, and Aa. Each combination has an equal probability of 0.25.
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Explain how uplift of land that contains a river at its base level affects the rivers channel
Answers
As the river downcuts, it changes the shape of its channel. The channel becomes deeper and narrower, with steeper sides. This is because the river is now flowing through a smaller area than before, so it needs to flow more quickly to maintain the same discharge. The faster flow creates more erosive power, allowing the river to cut down even further.
Over time, the river will continue to downcut and erode the uplifted land until it reaches a new, stable base level. This new base level will be lower than the original base level, and the river's channel will have a new shape that reflects the changes in the land.
transfer between the blood and tissue ,?
Answers
Answer:
Commonly known as 'internal respiration' this refers to the process by which the respiratory gases are exchanged between the blood and the tissues of body.
Explanation:
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What would happen if animals have cell wall?
Answers
If animals had cell walls, it would help their cells to be more resilient and better able to withstand environmental stresses.
What is cell walls?Cell walls are rigid structures that surround the cell membrane and provide structural support and protection to the cell. They are found in plants, bacteria, and some protists, but not in animals.
If animals were to develop cell walls, this could potentially make their cells more resilient and better able to withstand environmental stresses, such as changes in temperature, pH, or osmotic pressure.
However, it could also make it more difficult for the cells to move and interact with their environment, as cell walls are relatively inflexible.
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Diffusion is the_______________________________________________________
Answers
Answer:
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration.
Explanation:
Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out of cells.
The image shows an aspect of human culture. Whích aspect is illustrated in the image?
A. Tradition
B. Religion
C. Social organization
D. Language
Answers
The aspect of human culture illustrated in the image is language. Writing is one form of language.
Writing can be considered as a form of language, which that uses grammar rules to describe ideas and situations.
Writing is a system of symbolic communication composed of signs, meanings, and a code to link these signs with their corresponding meanings.
A written language can be defined as the schematic representation of a spoken/gestural language by using a writing system.
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Answer:
D. Language
Explanation:
Correct just take my word.
where in the cell does the process of transcription occur?
Answers
Answer:
in the cytoplasm in prokaryotes and in nucleus in eukaryotes.
Explanation:
The process of Transcription takes place in the cytoplasm in prokaryotes and in nucleus in eukaryotes. It uses DNA as a template to make an RNA (mRNA) molecule. During transcription, a strand of mRNA is made that is complementary to a strand of DNA
Transcription is the process of copying the genetic information contained in DNA into RNA. This process takes place in the nucleus of the eukaryotic cell and in the cytoplasm of the prokaryotic cell.
During transcription, the RNA polymerase enzyme reads the DNA sequence and creates a complementary RNA molecule. In eukaryotic cells, the DNA is found within the nucleus, while the RNA molecules are synthesized in the nucleus and then transported to the cytoplasm for translation.
In the nucleus, the DNA is located in the form of chromosomes, which consist of coiled DNA strands. The DNA molecules contain the instructions for the synthesis of proteins and other cellular components. The process of transcription begins with the binding of RNA polymerase to the promoter region of the DNA molecule.
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What is the definition of transcription?
Answers
Explanation:
The synthesis of RNA under the direction of DNA is transcription.
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Answer:
A written or printed representation of something.
The action or process of transcibing something.
an arrangement of a piece of music for a different instrument, voice, or number of these.
Why is an atom said to be electrically neutral? Please i need further explanation
Answers
Vega is a bright star visible in the Northern Hemisphere, and it is about 25 light years away from Earth. When you look up at Vega at night, how long did the light travel before reaching your eye?
Answers
Answer:
25 light years
Explanation:
Honeybees eat nectar found in flowers. In the process of gathering nectar, bees carry pollen from flower to flower. This allows the flowering plants to reproduce. Based on this information, what is the best classification for the relationship between honeybees and flowering plants?
commensalism
parasitism
mutualism
competition
No links
Answers
Both the flower and the bees benefit from this interaction.
Commensalism is when one benefits and the other is not affected (no harm, no benefits)
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What is the difference between biotic and abiotic factors? How do they interact within an ecosystem?
Answers
What is the data of an experiment?
A Information you learn in the experiment
B The report written about the experiment
C The questions asked in the experiment
D The presentation you give about an experiment
Answers
Answer:
A
Explanation:
you collect information based on what you are doing and how it is responding. therefore you are collecting data
Answer would be A or B