Anew bactericidal antibiotic, brooklamycin, has a miminum inhibitory concentration of 1 nm (nanomolar). if you use that concentration of streptomycin to kill 10^9 bacterium in 1 ml, how many molecules of the antibiotic are necessary to kill each cell?

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.

b a mature ovary of a plant.