ANSWER QUICK PLSS In any experiment, you only want to have ONE independent variable.
true
false

That is True you always want to have one.

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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a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.