Fraternal twins develop when:
A) one egg is fertilized by two sperm.
B) two eggs are fertilized by one sperm.
C) multiple ovulations occur, and two eggs are fertilized.
D) one egg is fertilized by one sperm, but the resulting cells separate from one another and continue development.
Correct Answer:
Verified
Q14: Through what structure does an oocyte travel
Q15: The vas deferens ducts empty sperm into
Q16: On average,about how often does ovulation occur?
A)every
Q17: Spermatids are produced by:
A)spermatogonia.
B)primary spermatocytes.
C)secondary spermatocytes.
D)sertiary spermatocytes.
Q18: The stages of follicle development are:
A)tertiary follicle,
Q20: Which of these is not a supporting
Q21: The portion of a sperm that carries
Q22: When does the fetus achieve about 15
Q23: Which hormone stimulates the muscular contractions associated
Q24: When a spermatogonium divides,it produces one primary
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