Which instrument would be best for measuring mass? * O Scale that measures grams
O A Flask
O Scale that measures pounds
O A graduated Cylinder
O Measuring tape

Scale that measure pounds

Scale that measures grams.

Explanation:

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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