What are the only mammals that lay eggs?
A) monotremes
B) placentals
C) marsupials
D) there are no egg-laying mammals
Correct Answer:
Verified
Q2: What completes the preparation of the uterus
Q3: What is the primary means of reproduction
Q4: In humans,which embryonic tissues are "indifferent"?
A)the vertebral
Q5: The immotile sperm develop motility in about
Q6: Some internally fertilized eggs develop and hatch
Q8: What initiates the monthly preparation of the
Q9: What stimulates spermatogenesis?
A)Estradiol
B)FSH
C)LH
D)Testosterone
E)Progesterone
Q10: What stimulates secretion of testosterone by Leydig
Q11: What mammals retain their young for a
Q12: What kind of oocyte is released from
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