Similar to making a double batch of cookies, in order for a cell to divide it must have double the contents that it normally has. during interphase: a)none of these happen during interphase; synthesis occurs during mitosis. b)cytoplasm increases, and organelles and dna are replicated. c)cytoplasm and organelles are replicated, but not dna. d)only cellular dna is replicated to a 4n state.

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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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.