Question

multiple choice question
after pollination, sperm nuclei from the pollen grain travel down the______and eventually reach the ovule.
○ endosperm
○ pollen tube
○ stamen
○ pollen sac

Explanation:

After pollination, the pollen grain germinates on the stigma and forms a pollen tube. The sperm nuclei from the pollen grain travel down this pollen tube. The endosperm is a tissue in seeds that provides nutrients. The stamen is the male reproductive part of a flower (consisting of anther and filament). The pollen sac is where pollen is produced in the anther. So, the correct structure for sperm nuclei travel is the pollen tube.

Answer:

pollen tube