The graphic shows the citric acid cycle. CO2
Pyruvic acid
NAD
CCC
NADH + H+
NADH
NAD
Acetyl-COA
FADH2
CC
COA
FAD
COA
4-carbon
Citric acid
compound

SU

ADP
ATP
CO2
NADH
NAD
5-carbon
compound
ССССС
NAD+
NADH
CO2
During the citric acid cycle, what happens to acetyl-CoA?

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except