A big advantage of the evolution of internal fertilization is:

Puberty in females is delayed who are:

1. active and have high body fat

2. active and have low body fat

3. sedentary and with high body fat

4. sedentary with low body fat

Which of the following cannot be exclusively because of testosterone?

1. growth of the larynx

2. development of pubic hair

3. growth of the testes

4. growth of the penis

The duct of seminal vesicle opens into the:
1. Caput Epididymis
2. Cauda Epididymis
3. Ejaculatory duct
4. Vas deferens

Within the fetus, much of the circulating blood bypasses the lungs and flows through the ______________.
1. ductus venosus
2. umbilical vein
3. umbilical artery
4. ductus arteriosus

In vertebrate eggs with large yolks, cleavage is described as _______ and results in a ________ on top of the yolk.
1. meroblastic/trophoblast
2. holoblastic/blastodisc
3. meroblastic/blastodisc
4. meroblastic/blastomere

Testosterone secretion before birth is due to:

1. FSH

2. GnRH

3. HCG

4. LH

Labor can be hastened by:
1. progesterone
2. estradiol
3. prostaglandins
4. HCG

Till approximately what gestation age is the use of the term ‘embryo’ justified?
1. week
2. two weeks
3. month
4. two months

Lactation after child birth is possible due to decrease in the secretion of:
1. HCG
2. oxytocin
3. FSH and LH
4. estrogen and progesterone