The primary sexual characteristics that are determines at birth include...

1. The primary sexual characteristics that are determines at birth include:
a) facial hair, body hair, and body shape (endomorph, mesomorph or ectomorph)
b) prominent breasts and wider hips in females; broader shoulders and narrower hips in males
c) muscle development, voice pattern, and associated blood supplying vessels
d) the pair of organs, ovaries or testes; ducts and glands that play a role in transporting genes.

I think it's D?

2. The male reproductive system is similar to the female reproductive system in that:
a) gonads that produce gametes are held outside the body
b) gametes are produced in high numbers (more than 100 million sperm per day)
c) the excretory and reproductive systems are joined in the urethra, which transports urine and gametes out of the body.
d) hormones have a major role in the development of secondary sexual characteristics

3. HIV leads to illness and death in people who have AIDS because it:
a) attacks B type WBCs of the immune system destroying the production of specific antibodies.
b) enters open cold sores causing blindness and neurological disorders.
c) causes infection of the liver, liver cancer, and even death.
d) attacks helper WBCs of the immune system making people vulnerable to infections.

I think it's A or D, although not sure.

4. In males, a chlamydia infection may cause inflammation in areas of the reproductive system. The maturation and storage of sperm might be affected directly if inflammation occurs in the:
a) epididymis
b) seminal vesicles
c) prostate glands
d) ductus deferens

5. The cycles in the female reproductive system are the:
a) ovarian cycle and the uterine cycle
b) uterine cycle and the menstrual cycle
c) parasympathetic and sympathetic antogonistic cycles
d) follicular and the luteal cycle

I think it's B?

6. The associated change in the male's reproductive system when some men over the age of 50 experience difficulty in urination is most often :
a) testicular cancer
b) infected ductus deferens
c) decline in pituitary FSH
d) enlarged prostate gland

7. During ovulation, production of hormones:
a) estrogen and LH is high
b) FSH and estrogen stops
c) progesterone and FSH is high
d) estrogen and progesterone is low

8. Males exposed to high levels of estrogen mimicking chemicals might experience:
a) development of ovaries
b) increased growth of facial hair
c) development of breast
d) increased growth of muscles

I'm thinking C?