The negative feedback system is based on a low level of hormone

A. preventing the kidneys from excreting the hormone.
B. causing another gland to secrete a similar hormone.
C. causing the gland to decrease secretion of the hormone.
D. causing the gland to increase secretion of the hormone.

D

disagree

Negative feedback is a reaction that causes a decrease in function.

I have read my book over and over

B

still diagree

To determine the correct answer, we need to understand what a negative feedback system is and how it functions. A negative feedback system is a control mechanism that helps regulate hormone levels in the body. It works by detecting changes in hormone levels and initiating a response to counteract those changes, ultimately maintaining homeostasis.

In this case, the question is asking how the negative feedback system is based on a low level of hormone. We can infer that a low level of hormone triggers the negative feedback system to bring the hormone level back to normal. Therefore, we are looking for an answer that describes what happens when hormone levels are low.

Let's review the options:

A. Preventing the kidneys from excreting the hormone: This option does not directly address the low hormone level. It pertains to the excretion of the hormone by the kidneys, which is not the primary focus of a negative feedback system.

B. Causing another gland to secrete a similar hormone: Again, this option does not directly address the low hormone level. It suggests that another gland is involved, secreting a similar hormone, but it does not explain the negative feedback mechanism.

C. Causing the gland to decrease secretion of the hormone: This option is a plausible answer. In a negative feedback system, when hormone levels are low, the gland responsible for producing the hormone might be signaled to reduce its secretion. This helps regulate the hormone level and bring it back to normal.

D. Causing the gland to increase secretion of the hormone: This option is incorrect. In a negative feedback system, if hormone levels are low, the gland would not respond by increasing its secretion of the hormone. Instead, it would decrease its secretion to restore normal hormone levels.

Based on the explanations provided, it is clear that the correct answer is C. The negative feedback system is based on a low level of hormone by causing the gland to decrease secretion of the hormone.