All the stages in a living thing is development from one generation to the next: A)vertebrate

B) life cycle

C)tetrapod

D)endoskeleton

E)exoskeleton

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.