Anwser this Please thank you

I think the first one is True?

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

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle