Which statement best describes the role carbon plays in the structure of compounds present in living things? a fundamental role. a somewhat important role. a minimal role.

i believe the answer is "A fundamental role". hope this helps.

the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

mammal

explanation: