Which is not a component or stage of photosynthesis? Which is not a component or stage of photosynthesis?

The light reactions
The Calvin cycle
An electron transport chain
The Krebs cycle

I believe the answer is C, its been a while since I've learned this

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

feral cats are estimated to eat tens of millions of native animals each night in australia