Chapter 38

Most land animals have ___________ fertilization. a. internal b. external

An individual that makes eggs and sperm is a ____________ a. zygote c. gastrula b. hermaphrodite d. gamete

Testosterone is secreted by the_______________ a. testes c. prostate gland b. hypothalamus d. pituitary gland

During a menstrual cycle, a midcycle surge of _________ triggers ovulation. a. estrogens b. progesterone c. LH d. \(\mathrm{FSH}\)

The corpus luteum develops from ____________ a. a polar body c. a secondary oocyte b. follide cells d. spermatogonia

Match each term with the most suitable description. _________epididymis _________vas deferens _________vagina _________seminal vesicle _________penis oviduct _________uterus a. conveys oocyte to uterus b. can be inflated by blood c. where sperm mature d. target of vasectomy e. main contributor to semen \(\mathrm{f}\), sheds lining monthly \(g\). birth canal

A homeotic gene regulates _________ a. body part formation \(\quad\) c. secondary sexual traits b. milk production d. sperm formation

True or false? All blastomeres have the same cytoplasmic components and express the same genes.

What are the three tissues of a vertebrate gastrula?

A human blastocyst normally implants in ____________ a. an oviduct c. the uterus b. a seminiferous tubule d. the vagina

Match each hormone with its effect. ________oxytocin _________testosterone _________\(\mathrm{LH}\) _________\(\mathrm{GnRH}\) _________\(\mathrm{FSH}\) ________HCG _________prolactin a. growth of facial hair b. uterus contracts c. \(\mathrm{LH}, \mathrm{FSH}\) are released d. surge causes ovulation e. follicle develops \(\mathrm{f}\), milk is produced g. endometrium is maintained