Describe one human impact that is harmful to the environment AND one that is beneficial. Describe how each of these actions impacts biodiversity.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?