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The 16-cell (72 hour) stage when a cluster of cells form is known as the:

Semen contains alkaline secretions for what purpose?

Sperm in the seminiferous tubules travel next to the:

What is the process in which immature follicles degenerate and are resorbed during follicular phase of menstrual cycle?

Identify structures D on the model below. 

Which type of lipoprotein transfers cholesterol from the cells in peripheral tissues to the liver for inclusion as part of bile?   

Which portion of the uterus will mitotically replace the layer shed during menstruation?

Thinning of the cervical tissue during first-stage labor is called

The reduction in the number of chromosomes to half (n) the normal count occurs during:

Until ejaculation, sperm are stored mainly in