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artcher [175]
3 years ago
6

3. Predict at least three factors that could account for the difference between the individual with the fastest average reaction

time and the individual with the slowest average reaction time in your group. (What factors can increase or decrease reaction time?)
4. Which of your body structures was the sensory receptor in the reaction time test? What was the stimulus?
5. Which of your body structures was the effector in the reaction time test? What was your motor response?
Biology
1 answer:
horrorfan [7]3 years ago
4 0

Answer:

-

Explanation:

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</span>The ancestors of horses lived in the forest, where they could hide from the predators. But, with the first steppes, they could be spotted by the predators. Horses had to adapt in order to survive. Thus, their legs became longer through time so horses could run faster to escape predators.<span>
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Legumes, a type of plant, require Rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photos
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Answer:

rhizobia is an important nitrogen fixing bacteria found in the soil to help grwo plants like legumes. rhizobia enter into a symbiotic relationship withe legumes

Explanation:

rhizobia and legumes coexist by entering into a symbiotic association.  rhizobia is a bacteria that fixes nitrogen molecules for the legumes and in return the legumes provide the bacteria with food and nutrition.

If rhizobia becomes extinct in the near future it would be difficult for plants like legumes to grow as they wouldn't get sufficient nitrogen and nitrogen is an important nutrition for the plant to grow and develop. Thus it can cause rapid depletion or death of plants that need rhizobia to fix nitrogen molecules for them.

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The graph below shows the expected lifespan of diabetic individuals before and after the
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Answer:

It increased their life expectaion.

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Which characteristic of viruses prevents them from being used as evidence to support cell theory?
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Answer:

Viruses replicate only inside host cells.

Explanation:

<u>Viruses are not used as evidence to support the cell theory because they are not considered a cell and cannot carry out vital life processes without getting into host cells. </u>

According to the cell theory, the cell is the basic unit of life, all living organisms are made up of cells and cells arose from preexisting cells. A virus that is not in a host cell is just a piece of DNA/RNA surrounded by a protein coat and is not capable of carrying out any life process for it to be considered living.

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You have begun work on a new experiment determining exactly how certain neurotoxins affect the nervous system. After running mul
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When looking at a Neuromuscular Junction (NMJ), we know that neurotransmitters (NT) are released from the presynaptic cell and they then bind to the receptors that are located on the postsynaptic cell - this causes the effect of the NT being released.

So we are told that NT are still being released, however they are not having an effect. This would mean that they are probably being blocked by something - in this case, it seems that the neurotoxin is the culprit in the blocking of these receptors.

Therefore, if the NT cannot bind to the receptors on the postsynaptic cell, they are not going to have any effect, no matter how much NT is being released.

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