Question

in pines, sperm reaches the archegonia via ______. a pollen tube water vascular tissues wind

Explanation:

In pines, after pollination, a pollen tube grows from the pollen grain. This pollen tube serves as a pathway for the sperm to reach the archegonia where fertilization occurs. Water is not the medium for sperm - transfer in pines as they are adapted to drier environments. Vascular tissues are for transport of water, nutrients and products of photosynthesis, not for sperm - transfer. Wind is involved in pollination (carrying pollen grains), not in the direct transfer of sperm to archegonia.

Answer:

A. a pollen tube