Are deep ocean vents part of an ecosystem

Yes

Explanation:

Believe it or not, they are! They are parts of an ecosystem because in often cases, they provide heat that helps keep many organisms and animals alive!  Hope this helped!

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