When a rat's ventromedial nucleus is destroyed, the rat will: a. develop an aversion to food. b. begin to eat uncontrollably. c. continue to eat the amount of food it does normally. d. stop eating solid food?

B (begin to eat uncontrollably)

Explanation:

The ventromedial nucleus also known as the ventromedial hypothalamus is a distinct nucleus located inside the hypothalamus of the brain. It is known as a nucleus because it is a distinct group of neurons within the hypothalamus. The nuclear region is involved in terminating hunger, bringing about satisfaction in organisms.

It is responsible for the feeling of satisfaction or fullness after eating, in organisms. Its stimulation induces cessation of eating in an animal. It tells organisms when they have eaten enough, hence, to stop eating.

However, lesions or damage to this satiety center (Ventromedial nucleus) results in overeating and subsequently obesity because the organisms are not getting the information that they are full.

Hence, when the ventromedial nucleus of a rat is destroyed, it no longer gets the awareness of satisfaction when eating, hence, it eats uncontrollably.

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