Identify and describe the method of heat transfer that Carly is investigating. Describe the effect of the heat transfer on the motion of the water molecules at the top and the bottom of the beaker.

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.