1.

Ejaculation of human male contains about 200 - 300 million sperms, of which for normal fertility __ % sperms must have normal shape and size and at least __% must show energetic motility.

A. 40, 60              
B.        50, 50
C. 60, 40              
D.        30, 70
Answer» D.        30, 70


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