Question 1
An embryo with two X chromosomes will develop female characters because of
◦ the presence of female hormones in development.
◦ the absence of testosterone during early embryology.
◦ the SRY regions of the X chromosomes.
◦ maternal substances passed to the zygote during fertilization.
◦ human chorionic gonadotropin.
Question 2
As bones age in older persons, they
◦ have increased calcium deposits.
◦ become stronger.
◦ are less porous.
◦ are more brittle.
◦ increase in length.