Which term best characterizes the role of corals in a coral reef ecosystem?
o
a. photosynthetic
b. parasitic
c. abiotic
d. biotic

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above