Choose the one most appropriate answer for each.
-Primary productivity

A)Rate at which energy becomes stored in organic compounds through photosynthesis
B)Main form of carbon storage in sea water; taken up by marine producers and converted to carbon dioxide
C)A straight-line sequence of steps by which chemical bond energy moves to higher trophic levels
D)The amount of energy from autotrophs that is available to first-level consumers
E)The movement of a nutrient among environmental reservoirs and into and out of food webs
F)Particles of organic waste products; dead, or partly decomposed tissues