¿De dónde provienen las sustancias de desecho del organismo y por qué es tan importante desecharlas?

What maintain homeostasis when a persons internal body temperature is 97.5°f

What are some natural processes that represent physical and chemical changes?

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.