How can an injury to a peripheral nerve cause loss of both sensory and motor functions?

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.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate