Answer:
An adaptation is a trait an animal has, physical or behavioral, that helps it survive or act in unique ways.
They use tools to help take precise measurements, carry out experiments, and make observations.
Answer:
The Sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
