As the warm air rises through the Troposphere it: a. contracts and cools
b. expands and cools
c. expands and heats
d. contracts and heats

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

¿cómo demostraron los experimentos de griffith que un factor hereditario estaba involucrado en la transformación bacteriana?