Question

pollen grain may be -a. gametophyte b. articulated c. allergent d. all of these

Answer 1

aloha!

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the answer is all of these this is why:

✯ pollen grains do act as gamete to form pollen tube.
✯ they are articulated that means they could could have different sections.
✯ allergent, yes they do act as allergent to certain plants and animals.

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hope it is the correct answer :)
and if it ain't correct do not hesitate to report it.

Answer 2

pollen grain is a a) gametophyte.