Select all that apply. in gymnosperms, pollination can occur by bees
the wind
butterflies
pollen dropping from the top to the bottom of a tree

The correct answer is the wind.

Gymnosperms are seeded plants whose seeds are naked, and are not enclosed in fruits. The male and female gametophyte structures develops in male and female cones.  Male and female cones borne on separate plants. In gymnosperms pollen grains are carried by winds to the naked ovules. Thus, pollination in gymnosperm is anemophily. After deposition of pollen grains on the ovule, pollen grain germinates, forming pollen tube which carries sperm cell preparation to fertilize with egg.  

explanation:

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