Answer:
primary succession occurs following an opening of a pristine habitat. and secondary succession is a response to a disturbance.
Explanation:
Answer:
amino groups
amino acids
R groups
Explanation:
I think these are right.
Because a polypeptide chain is polymer of amino acids that are linked together so that mean a polypeptide chain is protien.
As a parent you are responsible for another human for a lifetime. They rely on you to keep them healthy and to provide them with everything that they need to survive.
