What do bacteria have in common with the cells of other living organisms? a. they have the same shape. b. they are made of protein. c. they have a cell membrane. d. they are multicellular.

they have cell membranes (apex)

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.