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Advocard [28]
2 years ago
7

Which of the following is an example of a positive feedback?

Biology
2 answers:
iogann1982 [59]2 years ago
6 0

Answer:

C. A tear in the lining of a blood vessel triggers the accumulation of blood platelets, which cause blood to clot.

Explanation:

Positive feedbakc occurs when something happens that triggers B, this B then causes the first thing that originally happened to happen again, and it is a vicious circle that harms the system into unestability. For example the birth circle, when brain releases ocytocin to create contractions and then contractions make the body realese prostaglandis, and this causes the body to realease more oxytocin, which starts the cycle again.

wariber [46]2 years ago
3 0
The answer for this question is C.
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For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to
posledela

Answer:

The correct answer will be option-E

Explanation:

Hershey and Chase's experiment was performed to test whether DNA serves as the genetic material or protein.

To perform experiment they grew bacteriophage into radiolabeled phosphorus and sulfur compounds. The phosphorus is an integral part of the structure of DNA whereas proteins contain sulfur in their structure.  

In the given condition if radiolabeled nitrogen is utilized then the experiment will fail as the structure of proteins also contains an amino group( NH₂) in their structure as well as DNA. The scientist will not be able to identify whether the DNA is the genetic material or protein.

Thus, option-E is the correct answer.

7 0
2 years ago
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grin007 [14]
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Hemoglobin is the protein inside red blood cells that carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made inside your bones, in the bone marrow. They typically live for about 120 days, and then they die.

White blood cell. ... White blood cells(also called leukocytes or leucocytes and abbreviated as WBCs) are thecells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

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5 0
3 years ago
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The right answer is D. renal regulation.

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3 years ago
Which pharmacokinetic parameter is affected most by decreased intestinal motility related to the aging process? a. excretion b.
Tpy6a [65]
I believe the answer is <span>c. absorption

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Age could also influence others pharmacokinetic parameter(<span>excretion, distribution, metabolism) but it is related with another organ, not intestine.</span>
8 0
2 years ago
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Because people and animals exhale carbon dioxide which plants need and they release oxygen
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