¿Qué diferencia hay entre el pericondrio y el periostio ?

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

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.

idk what happened..you tell