It's an important part of the bird's ability to maintain its body temperature.
Air is a poor conductor of heat, so the air trapped among the feathers
prevents the loss of heat in cold atmosphere, and prevents overheating
in hot atmosphere. Much like our wearing several layers of clothing.
The answer is D, serving as a primary source of energy for the body.
Answer:
The <u>carrying capacity</u> is the average species population size in a given ecosystem. This can be limited however by different environmental factors like availability of food, water, or shelter.
Explanation:
