Describe how biodiversity of species in the ecosystem represented in part A changed over time. Is this change biodiversity unique to the type of ecological succession (primary or secondary) that has occured?​

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the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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the fossil record provides evidence of a common ancestor to many species.

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