Which of the following is true about how siblings respond to the birth of a new sibling?
a. They may react with increased independence.
b. They may react with increased anger.
c. They may have increased toilet accidents.
d. All of these are possible.
Question 2
Only 1 in 1,000 sperm will ever arrive in the vicinity of an ovum. Which of the following factors prevent sperm cells from traveling the entire distance to the egg?
a. gravity c. current of fluid from the cervix
b. vaginal acidity d. all of these