Which is the role of the enzyme rubisco?
a. regeneration of ribulose 1,5 bisphosphate molecules.
b. splitting of a six-carbon product during the calvin cycle.
c. condensation of ribulose 1,5 bisphosphate with carbon dioxide.
d. condensation of ribulose 1,5 bisphosphate with carbon dioxide and splitting of a six-carbon product during the calvin cycle.

Option D, Condensation of ribulose 1,5 bisphosphate with carbon dioxide and splitting of a six-carbon product during the Calvin cycle.

Explanation:

The enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase commonly known as RuBisCO is utilized in the first step of calvin cycle in order to fix free carbon dioxide from atmosphere. It catalyzes the process that involves carboxylation or oxygenation of ribulose-1,5-bisphosphate commonly known as RuBP in the presence of carbon dioxide or oxygen . It can survive on its own and even after dying it helps in decomposition

Hence, option D is correct

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this