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mixer [17]
2 years ago
8

Which of the following statements about positive feedback mechanisms is not true?

Biology
1 answer:
Hunter-Best [27]2 years ago
5 0

Answer:

The correct answer is d  the positive feed back reduces change in the the system

Explanation:

In an  biochemical reaction when the released product stimulate the release and activation of the same product and act together to exibit their biological function, then this type of regulation is called positive feedback.

     The positive feed back mechanism leads to increased change in the system that"s why it is named so.

    For example during blood clotting platelets molecules are released to form clots to stop bleeding. one activated platelet can stimulates the activity of other platelets which then join together to form a group for generating further blood clots.

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Answer:

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In salt water fish, chloride cells in the gills: a. actively transport Cl- from the plasma to the ECF. b. actively transport Cl-
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Answer:

b. actively transport Cl- from the ECF to the external environment.

Explanation:

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The opposite of this process occurs in freshwater fishes where the gills of freshwater teleost fish, cause an influx of sodium and chloride ions into the fish from the environment, also against a concentration gradient.

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