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alex41 [277]
3 years ago
8

What is a key part of darwins idea of natural selection

Biology
1 answer:
forsale [732]3 years ago
6 0
<span>D. More individuals are born than can live on available resources.hope this helps!
</span>
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in mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat
serious [3.7K]

True. In mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat dissipation including vasodilation.

<h3>What is vasodilation?</h3>

Vasodilation, as it is known in medicine, occurs when blood vessels in your body open up, enabling more blood to flow through them and resulting in a reduction in blood pressure. Without your knowledge, your body goes through a routine procedure like this. It can also be brought on by the foods and beverages you consume as well as the drugs you take. Vasodilation may also be a sign of a particular illness.

The two of the many functions that your blood serves in the body:

  • Carrying oxygen and nutrients
  • Aiding in temperature regulation in your body.

Your body's blood arteries are more complex than simple tubes that remain constant in size. Your blood arteries include muscle as well, and that muscle regulates how wide or narrow they are at any particular time. Vasodilation occurs when blood vessels enlarge. Vasoconstriction is the opposite process, which occurs when blood vessels narrow and contract.

To learn more about vasodilation visit:

brainly.com/question/10017075

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8 0
1 year ago
What reproductive advantage do amniotes have over pre- amniotes
marta [7]

Answer:

we take longer to reproduce sadly.

6 0
3 years ago
It is true that soil loss caused by wind and water
snow_tiger [21]

Answer:

Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away. Activities that remove vegetation, disturb the ground, or allow the ground to dry are activities that increase erosion.

4 0
3 years ago
Read 2 more answers
Which is not correct about cancer risks?
rusak2 [61]
The lifetime risk of developing cancer is a chance a person has over his or her lifetime and can be diagnose of having a cancer. In the scenario about the cancer risks, the answer would be c. the more you drink, the lower your risk is. The more alcohol one's drink does not mean it will lower one's risk of developing cancer.
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A scientist investigated DNA replication in two groups of cells, labeled A and B. She injected radioactively labeled nucleotides
victus00 [196]

Answer:d

Explanation:step by step explanation

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3 years ago
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