One of the differences between a plant and animal cell can be found surrounding the outer cell structure of the plant cell. this part of the plant cell is made of specialized sugars called cellulose. it provides structure and support to the plant cell. what is this structure? a) cell wall b) cytoplasm c) chlorplast d)

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explanation:

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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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