Answer:
The amount of sunlight that reaches them.
Explanation:
N/A
Answer:
Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. In other words, a niche is how an organism “makes a living.” A niche will include the organism's role in the flow of energy through the ecosystem.
Explanation:
Oxygenated blood is pumped from the left ventricle
Answer:
receive food from the mother
