Multiple Choice
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
Correct Answer:
Verified
Q28: Enzymes are carried in the _ of
Q29: Spermatids are produced by:<br>A)spermatogonia.<br>B)primary spermatocytes.<br>C)secondary spermatocytes.<br>D)sertiary spermatocytes.
Q30: The sequence of development of sperm is:<br>A)primary
Q31: Sperm are made in the:<br>A)testes.<br>B)epididymis.<br>C)ovary.<br>D)vas deferens.
Q32: Refer to the figure below, and then
Q34: Which of the following best describes the
Q35: Sperm develop in the seminal vesicles.
Q36: How much does the cervix ultimately dilate
Q37: Implantation occurs in the _ of the
Q38: When a spermatogonium divides,it produces one primary