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Biology: The Unity and Diversity of Life

Cecie Starr, Ralph Taggart, Christine Evers

Chapter 41

Animal Reproductive Systems - all with Video Answers

Educators

Chapter Questions

00:46

Problem 1

Sexual reproduction _____.
a. requires formation of gametes by meiosis
b. produces offspring identical in their traits
c. occurs only in vertebrates
d. all of the above

Aditya Sood
Aditya Sood
Numerade Educator
01:59

Problem 2

The _____ is a genetic dead end.
a. polar body
b. oocyte
c. ovum
d. sperm

Sirisa Reddy
Sirisa Reddy
Numerade Educator
00:29

Problem 3

The cervix is the entrance to the ____.
a. polar body
b. oocyte
c. ovum
d. sperm

Aditya Sood
Aditya Sood
Numerade Educator
00:58

Problem 4

During a menstrual cycle, a midcycle surge of _____ from the _____ triggers ovulation.
a. estrogen; follicle cells
b. progesterone; egg
c. $\mathrm{LH} ;$ pituitary
d. FSH; pituitary

Mishal Gul
Mishal Gul
Numerade Educator
01:34

Problem 5

The corpus luteum develops from _____ and secretes progesterone that causes the lining of the uterus to thicken.
a. follicle cells
b. the polar body
c. a primary oocyte
d. a secondary oocyte

Sirisa Reddy
Sirisa Reddy
Numerade Educator
00:30

Problem 6

Semen contains secretions from the _____.
a. adrenal gland
b. pituitary gland
c. prostate gland
d. corpus luteum

Aditya Sood
Aditya Sood
Numerade Educator
00:33

Problem 7

Male germ cells divide by meiosis inside the _____.
a. urethra
b. seminiferous tubules
c. prostate gland
d. vasa deferentia

Mishal Gul
Mishal Gul
Numerade Educator
00:30

Problem 8

A male attains an erection when _____ .
a. muscles running the length of the penis contract
b. Leydig cells release a surge of testosterone
c. the posterior pituitary releases oxytocin
d. spongy tissue inside the penis fills with blood

Aditya Sood
Aditya Sood
Numerade Educator
00:21

Problem 9

Binding of a sperm to an oocyte plasma membrane causes the oocyte to _____.
a. enter an oviduct
b. complete meiosis II
c. secrete estrogen
d. expel its nucleus

Mishal Gul
Mishal Gul
Numerade Educator
00:27

Problem 10

Birth control pills deliver synthetic _____.
a. estrogens and progesterone
b. LH and FSH
c. testosterone
d. oxytocin and prostaglandins

Mishal Gul
Mishal Gul
Numerade Educator
00:48

Problem 11

Sperm in an epididymis pass next into the _____.
a. prostate gland
b. urethra
c. seminiferous tubules
d. vas deferens

Courtney Burson
Courtney Burson
Numerade Educator
00:35

Problem 12

Match each disease with the type of organism that causes it. The choices can be used more than once.
a. bacteria
b. protist
c. virus
chlamydial infection _____
AIDS _____
syphilis ____
genital warts _____
gonorrhea ____
genital herpes ____
trichomoniasis ____

Mishal Gul
Mishal Gul
Numerade Educator
00:39

Problem 13

Match each structure with its description.
a. conveys sperm out of body
b. secretes semen components
c. stores sperm
d. produces testosterone
e. produces estrogens and progesterone
f. usual site of fertilization
g. lining of uterus
h. fat-padded skin folds
i. birth canal
testis _____
epididymis _____
labia majora _____
urethra _____
vagina _____
ovary _____
oviduct ____
prostate gland _____
endometrium _____

Mishal Gul
Mishal Gul
Numerade Educator
00:24

Problem 14

Match each hormone with its source.
a. pituitary gland
b. ovaries
c. hypothalamus
d. testes
FSH and LH _____
GnRH _____
estrogens _____
testosterone _____

Mishal Gul
Mishal Gul
Numerade Educator