Barbara's teacher wants her to design an oven that can be powered by a renewable resource. Which of the following energy sources could Barbara use? A
coal

B
gasoline

C
uranium

D
sunlight

The answer is sunlight

Explanation:

I hope that's true

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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