49. How is air drawn into the body? A. Breathing in
B. Breathing out
C. Contracting the diaphragm
D. None of the above

What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.