What chromosome pair represents a human male?

Which of the following typically characterizes a tropical rainforests

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.