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:
The answer is metaphase 1
Visceral, cardiac, and skeletal
The R-group (side chain) is what makes each amino acid unique. Each of the 20 amino acids has a different side chain structure.
