How did organisms arrive at the galapagos islands?.

There are two main ways for species to make their way to remote islands (aside from any methods involving humans). The first method is by air in the form of flying or being blown by the wind, and the second method is by the sea while swimming or floating, sometimes with the aid of rafts of tangled vegetation.

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name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

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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