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Vanyuwa [196]
3 years ago
13

"Diver's reflex" is a response to diving in many aquatic mammals and also occurs in humans upon submersion in water. It is chara

cterized by physiological changes that decrease oxygen consumption, such as a slowed heart rate. Which region of the heart would be directly affected by the nervous system to allow for the slowing of heart rate?
Biology
1 answer:
Lena [83]3 years ago
5 0

Answer:

The answer is Sinoatrial node.

Explanation:

The sinoatrial node are the group of cells in the wall of right atrium of the heart.

The animals tend to initiate diving response when diving, this is the reduction in heart rate, which triggered respiratory arrest response and stimulation of facial code receptors.

This is the physiological adaptation allowing animals to cope with lack of oxygen.

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The number of possible genetically different gametes for an organism equals
masya89 [10]

The organism can produce 12 genetically different gametes.

<h3><u>Explanation:</u></h3>

The gametes are the unit of sexual reproduction which are produced by an organism from their germ mother cell by means of meiosis. This gametes do carry half the amount of total chromosomes that is present inside each cell of that organism. This process let's the genetic combinations of chromosomes to get more variations among offsprings. But this isn't the only source of variation among the offsprings.

Each and every germ mother cell that's undergoing the meiotic division undergoes a process called crossing over and chaismata formation which gives the genetic mixing among the different alleles of same character among the organism.

Thus, statistically, if the organism has n pairs of chromosomes, then the organism will be able to produce 2n number of genetically different gametes which helps in finding out the probability of genotype of the offsprings.

So if the organism has 6 pairs of chromosomes, then the organism will be able to produce 12 genetically different gametes.

3 0
3 years ago
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The faster a cheetah can run, the more likely it is to capture its prey. Cheetahs with longer legs are able to run faster than t
stealth61 [152]

Answer:

D

Explanation:

This is the more likely explanation, as there must be a limit to leg length in an animal that has to run very fast and strain their muscles and bones to the limit to do so.

As for the other options, there is no evidence to conclude that the genes that are involved in cheetahs leg length do not undergo mutation because the population exhibits a variety of leg lengths. Neither can we conclude that there are any isolated subgroups in the pupulation. Natural selection does act upon the traits involved in predation, as the question starts by saying that the faster a cheetah can run the more likely it is to capture its prey.

8 0
3 years ago
If a cell takes in water and expands it is known as a
tigry1 [53]

Answer:

a hypertonic cell

Explanation:

if it is a hypertonic cell it will expand

3 0
2 years ago
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Which is the central element for all living things?
Tatiana [17]
The central element for all living things is carbon, which is why you might often hear the phrase "carbon-based" lifeforms. Another term is often "organic matter"
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3 years ago
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Which option is an example of a physical property?
wariber [46]
Rusting ability because it is something you can see
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