Which of the following is not a layer of the sun?
a. convective zone
c. radiative zone
b. core
d. conductive zone

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .