Differences in the relative abundance of different species in a community result from (choose any/all that apply, points deducted for incorrect answers):
a. variation in dispersal
b. time since last disturbance
c. predation and disease
d. differential reproduction rates
e. differential survival rates
f. variation in competitive ability to capture a particular resource
g. random effects

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.