Answer: Shivering
Explanation:
Homeostasis is the body ability to maintain the internal conditions stable and constant with respect to the changes occurring in the external environment. Shivering is a response shown by the body with respect to external cold environment. It is a tendency of the body to maintain it's internal temperature constant. It is the way by which the body produces heat to survive in cold weather conditions.
Answer:
An ecosystem only has a certain amount of resources to support a certain number of organisms.
Explanation:
An ecosystem consist of resources and organisms. Resources are the material which are responsible for the survival of living organisms in that ecosystem. Examples of resources are light, water, oxygen and food substance. In the absence of these resources, organisms will die.