What do we call the point at which a population stops growing?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which of the following sex and generation combinations directly produces the pollen tube of angiosperms? a) male gametophyteb) female gametophytec) male sporophyted) female sporophyte

Which of the following human activities resulted in the growth of the north american deer population?