Question

The Calvin cycle and the Krebs cycle are cycles of chemical reactions because they

a. occur inside organelles.
b. start over continually.
c. are part of the carbon cycle.
d. allow energy to flow in ecosystems.

Answer 1

I am pretty sure it is C, but I haven't studied this in a while.

Answer 2

they are also cycles, so B is also a possibility.

Answer 3

Let me know which one you chose and if you got it right. :)

Answer 4

ok :)