Homeostasis in the human body is often maintained by a: A. Positive feedback loop B. Negative feedback loop C. Neutral feedback loop

B. Negative feedback loop

Explanation:

A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.

Evolutionary change does not always lead to greater complex because some changes are not more complex.

Biological evolution is a term to refer to the set of phenotypic and genetic changes of biological populations through generations to improve the species.

Evolution is a characteristic process of all living organisms on Earth. In addition, several studies on evolution affirm that all organisms have a single ancestor and evolution has been the phenomenon that allowed the emergence of several increasingly complex species.

However, evolutionary changes do not generate more complex organisms, but simpler ones. An example of this is the loss of wisdom teeth in humans.

According to the above, evolutionary change does not always lead to greater complexity because evolutionary changes respond to climatic variations and specific conditions and do not always require more complexity.

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