Over millions of years, birds developed as a species. this relates to a. both macroevolution and mircroevolution b. microevolution c. macroevolution

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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you should wear a lead protective shield when having teeth x-rays

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-lavira : )