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3 years ago

Compare positive and negative feedback mechanisms

Biology

2 answers:

Alina [70]3 years ago

8 0

Answer:

Positive feedback mechanism:

This mechanism has positive correlation between the products and the process. The positive feedback mechanism result in the growth of a product. This mechanism is less common in organism and perform under specific conditions. Example: Process of blood clotting involves positive feedback mechanism.

Negative feed back mechanism:

This mechanism has negative correlation between the products and the process. Negative feedback mechanism result in the inhibition of the product. This mechanism is more common in organism and maintains homeostasis in the body.Example: Regulation of blood pressure involves negative feedback mechanism.

attashe74 [19]3 years ago

6 0

Answer:

Positive and negative feedback mechanisms are means by which Earth’s systems interact. Positive feedback involves an increase in the first variable leading to an increase in subsequent variables that ultimately leads to a greater increase in the first variable. Negative feedback involves an increase in the first variable, leading to an increase in subsequent variables that ultimately leads to a decrease in the first variable. Positive feedback speeds up the process and leads to instability. Negative feedback reduces changes in the system and helps to stabilize it.

Explanation:

the sample answer

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<h3>What are the types of nutrition? </h3>

The substances used by living organisms for obtaining energy and the biomolecules that are necessary for carrying out the various functions of the body are called nutrients. Nutrients are required by living organisms for the proper growth, maintenance, and functioning of the body.

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Autotrophic mode: In this mode of nutrition, the organisms use simple inorganic matter. These include water and carbon dioxide. These are used in the presence of light and chlorophyll to synthesize food by themselves.
Heterotrophic mode: In this mode of nutrition, the organisms depend on other organisms for their nutrition. These organisms cannot produce food by themselves and thus depend on other sources/organisms.

Therefore, in autotrophic nutrition, organisms are self-reliant. In heterotrophic nutrition, organisms depend on other organisms for food.

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