How is biodiversity used as a measure for the health of an ecosystem?

Which element is found in both dna and proteins

What occurs to the cell during mitosis

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.