Which of the following is a divergent boundary?
a. transform
b. oceanic-continental
c. continental-continental
d. rift valley

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.

Blank is a rock with a find dark texture that makes up the oceanic crust