About 88 percent of geologic time is represented by the time span called the era. paleozoic phanerozoic mesozoic precambrian

anti-human igf-i therapeutic antibody (ganitumab) expressed in cho can be provided from creative biolabs

explanation:

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.