Question

________ are formed in pollen grains​

Answer 1

Answer:

sperm cells is your answer

Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell. In flowering plants the vegetative tube cell produces the pollen tube, and the generative cell divides to form the two sperm cells.

Explanation:

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Answer 2

Answer:

sperm cells are formed in pollen grains