3. what is hibernation?\n4. what are calories?\n5. what does an anthropologist do?

3.

Brief Explanations:

Hibernation is a state of inactivity and metabolic depression in endotherms. Animals lower their body - temperature, heart - rate, and breathing rate to conserve energy during winter or when food is scarce.

Answer:

Hibernation is a state of inactivity and metabolic depression in endotherms to conserve energy during harsh conditions.

4.

Brief Explanations:

Calories are a unit of energy. In the context of nutrition, they represent the amount of energy that a food or beverage provides when it is metabolized by the body.

Answer:

Calories are a unit of energy, especially relevant in nutrition as the energy content of foods and beverages.

5.

Brief Explanations:

Anthropologists study human beings. They explore human cultures, societies, biological characteristics, and the evolution of humans through methods like field - work, research, and analysis.

Answer:

Anthropologists study human cultures, societies, biology, and evolution through various research methods.