Which structures in the diagram are not directly involved in sexual reproduction?

Astigma and ovary
Bsepal and petal
Canther and stamen
Dstigma and pollen User: Root nodules are associations between bacteria and plant roots responsible for
Ahelping the plant convert necessary carbon dioxide for use.
Bhelping the plant convert necessary oxygen for use.
Chelping the plant convert the necessary water for use.
Dhelping the plant convert the necessary nitrogen for use.

Verified Answer :

The correct answer for the question that is being presented above is this one: "b. sepal and petal." The structures in the diagram are not directly involved in sexual reproduction  are the sepal and petal.

The correct answer for the question that is being presented above is this one: "d. helping the plant convert the necessary nitrogen for use." Root nodules are associations between bacteria and plant roots responsible for helping the plant convert the necessary nitrogen for use.