How many kingdoms are there in the domain archaea? a. 4 b. 3 c. 1 d. 2

the answer is 1 (apex)

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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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.