The function of the pollen tube is to select one: a. digest the sporophyte tissue as it elongates toward the female gametophyte. b. produce pollen. c. attract animals to the plant to spread the pollen. d. direct pollen to the megasporangium. e. eject pollen from the microsporangium.

The right option is a. digest the sporophyte tissue as it elongates toward the female gametophyte. The pollen tube transports sperm cells from the pollen grain, from the stigma to the ovules at the base of the pistil containing the female gametophyte.

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.