When organisms are isolated due to some geographic barrier, like the formation of a river, this is called

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.

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate

Warmer ocean surface water would most likely be found near