Usually, in vitro fertilization __________.
A) is used to overcome male reproductive difficulties
B) poses less risk than natural conception to infant survival
C) is used to treat women whose fallopian tubes are permanently damaged
D) involves wealthy contractors for infants
Question 2
Donor insemination __________.
A) is commonly used to overcome female reproductive difficulties
B) involves giving a woman hormones that stimulate the ripening of several ova
C) permits women without a male partner to become pregnant
D) is used to treat women whose fallopian tubes are permanently damaged
A study by Seehausen and van Alphen involving the effects of male coloration on female choice in Afr
Male cheetah marking territory
Comparison of Female and Male Pelves
The karyotype of an XYY male. Affected individuals are usually taller than normal, and some, but not
Photomicrograph of a hermaphroditic nematode and self-fertilization