Determine the correct sequence of events to complete a Phylogenetic analysis. I. Nucleotides are stained with a dye
II. Use Polymerase Chain Reaction on DNA
III. DNA barcode is created
IV. Obtain DNA samples
V. DNA is run through Gel Electrophoresis

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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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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