Sperm cells contain no energy reserves, so they absorb sugar released by the seminal vesicles into the fluid known as ; this provides sperm cells with sugar that can then be used to make ATP.

Semen

Explanation:

Sperm cells are produced by the testes. These cells when produced have low energy and aren’t able to swim to the eggs for fertilization.

The Sperm cells contain no energy reserves, so they absorb sugar released by the seminal vesicles into the fluid known as Semen. This provides sperm cells with sugar that can then be used to make ATP.

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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