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Ronch [10]
3 years ago
10

Which scenario is an example of a negative feedback loop?

Biology
2 answers:
GREYUIT [131]3 years ago
8 0

Answer:

A.  When body temperature increases, sweat is produced as a cooling agent to lower body temperature.

Explanation:

A negative feedback mechanism is one that works by reducing a given stimulus. This mechanism is directly linked to maintaining our body's balance (homeostasis) and hormone secretion.

Sweat acts as a negative feedback mechanism as follows: When the nervous system detects the change in temperature during exercise, for example, it understands this change and stimulates the release of sweat.

As we perspire, sweat gets on the skin and then evaporates, cooling the body.

In other words, this means that by detecting the increase in body temperature, the body caused it to decrease as <u>negative</u> <u>feedback</u> through the production of sweat.

Alchen [17]3 years ago
4 0

option b is the correct answer for me please mark as brianlist

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The given question is incomplete. The complete question is as follows;

The number of bacteria in a certain population is predicted to increase according to a continuous exponential growth model, at a relative rate of 16% per hour. Suppose that a sample culture has an initial population of 71 bacteria. Find the predicted population after three hours Do not round any intermediate computations, and round your answer to the nearest tenth bacteria .

Answer:

114.7

Explanation:

A (t) represent the population of the bacteria at the time t.

Since, the population grows exponentially, the population can be calculated as follows:

A (t) = Ao ×  e^{kt}

A (t) is teh final population, Ao is the initial population, e is the exponential, k is rate and t is time.

A (t) = 71  × e^{0.16\times t}

For t = 3 hours

A (t) = 71 × e^{0.16\times 3}

A (t) = 114.7.

The population of bacteria after 3 hours is 114.7.

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