Answer: Serotonin
Explanation:
Serotonin is an hormone, derived from the amino acid, tryptothan. It is involved in vasodilation, sleep regulation, mood changes, capillary permeability, and causes contraction of smooth muscles like that of the stomach to signal hunger.
Answer:
d. introduce native flowering plants the adult butterflies need for nectar, their main food.
Explanation:
Organisms choose the habitat based on the availability of basic requirements such as food, nutrients, space, etc. in the region. The absence of one or more of these factors makes them choose another habitat. Butterflies feed on nectar made by plants in their flowers. To make the butterflies stay in the landscape, flowering plants adapted to local conditions should be planted. The butterflies would feed on the nectar of these plants and would stay in the landscape.
Answer:
The correct answer is - The amygdala
Explanation:
The amygdala is the part of the brain that is found in the medial temporal lobe of the brain. It is an almond-shaped structure of neurons. The amygdala is an essential region of the brain that has a major role in processing emotions such as aggression and others. It is the region of the limbic system that presents both sides of the brain.
Thus, the correct answer is - the amygdala.
