Answer:
The Nervous System coordinates the body’s response to changes in its internal and external environment. The lymphatic system is responsible for the immune system, the excretory system is responsible for the wastes of the body, and the reproductive system is responsible for reproduction.
Answer:a negative impact is global warming due to the over use of fossil fuels. a positive impact is the way we control the food chains and keep overpopulation from other species from happening.
Explanation: look above
Answer: Option D) cofactor that is an activator of the enzyme.
Explanation:
A cofactor is a non-organic component (usually a metal) of an enzyme or protein, that enhances its function. Good examples of Cofactors include iron in hemoglobin, zinc in carboxypeptidase.
Zinc at the active site of the enzyme, carboxypeptidase helps it in cleaving off aromatic amino acids.