In which direction do most warm currents move?

a. away from the earth's poles
b. away from earth's equator
c. away from cold currents
d. in the same direction as waves

This is a coral reef ecosystem. many biotic and abiotic factors affect the health of this ecosystem. which set correctly pairs a biotic factor and an abiotic factor?

Why do you think the puppy litter was all dark-haired?

How do accessory pigments chlorophyll?