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

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.