The fetally derived portion of the placenta secretes hormones essential for maintaining pregnancy,primarily human chorionic gonadotropin,estrogen,and progesterone.
Correct Answer:
Verified
Q70: The primary oocytes remain in a state
Q71: Genetic sex,which depends on the combination of
Q72: A small portion of testosterone secreted by
Q73: A blastocyst is a single-layer hollow ball
Q74: During the _phase following orgasm,sympathetic vasoconstrictor impulses
Q76: The final release of mature spermatozoa from
Q77: The placental hormone human chorionic somatomammotropin (hCS)increases
Q78: In humans,the spermatogonia divide _ twice to
Q79: Fertilization,the union of male and female gametes,normally
Q80: In humans,gametes contain only one member of
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents