Module 6 SEXUAL REPRODUCTION

Question 1

an ability to regulate internal conditions

Answer 1

regulation

Question 2

the mechanism by which evolution occurs

Answer 2

natural selection

Question 3

• the release of both sperm and eggs into an external environment
• does not require specialized structures

Answer 3

External Fertilization

Question 4

retention of fertilized egg inside the body where development occurs and nourishment is received from the yolk of most fishes and birds

Answer 4

Oviparity

Question 5

• production of eggs that develop within the mother’s body in which the eggs hatch within the mother for some time while eating unfertilized eggs for nourishment
• sharks and snakes

Answer 5

Ovoviviparity

Question 6

development is within the female and nourishment is received directly from the mother through a placenta

Answer 6

Viviparity

Question 7

release of mature eggs at the midpoint of a female cycle

Answer 7

ovulation

Question 8

has male and female reproductive system

Answer 8

hermaphroditism

Question 9

makes both sperm and eggs

can self reproduce through self fertilization

Answer 9

elagans

Question 10

male to female
vice versa

Answer 10

sex reversals

Question 11

an organism’s reproductive cells

Answer 11

Gametes

Question 12

muscular, hollow tube that extends from the vaginal opening to the uterus

Answer 12

vagina

Question 13

external part of the female reproductive organs

Answer 13

vulva

Question 14

Two pairs of skin flaps

Answer 14

labia

Question 15

a small sensory organ, is located toward the front of the vulva where the folds of the labia join

Answer 15

clitoris

Question 16

the canal that carries pee from the bladder to the outside of the body

Answer 16

urethra

Question 17

very thin piece of skin-like tissue

Answer 17

hymen

Question 18

has strong, thick walls

the lower portion of the uterus, an organ of the female reproductive tract

Answer 18

cervix

Question 19

upside-down pear, with a thick lining and muscular walls

Answer 19

uterus

Question 20

are two oval-shaped organs that lie to the upper right and left of the uterus. They produce, store, and release eggs into the fallopian tubes in the process called ovulation

Answer 20

ovaries

Question 21

connect the uterus to the ovaries

Answer 21

fallopian tubes

Question 22

the organ used for urination and sexual intercourse. It has spongy tissue that can fill with blood to cause an erection. It contains the urethra, which carries both urine and semen.

Answer 22

Penis

Question 23

this is a loose bag of skin that hangs outside the body, behind the penis. It holds the testes in place

Answer 23

Scrotum

Question 24

these are a pair of egg-shaped glands that sit in the scrotum, on the outside of the body. They produce sperm and testosterone, which is the main male sex hormone.

Answer 24

Testes (or testicles)

Question 25

this is a highly coiled tube that lies at the back of the testes.

All sperm from the testes must pass through the epididymis, where they mature and start to ‘swim’

Answer 25

Epididymis

Question 26

this is a thick-walled tube joined to the epididymis.

It carries sperm from the epididymis up to the prostate gland and urethra.

Answer 26

Vas deferens

Question 27

this is a walnut-sized gland that sits in the middle of the pelvis.

The urethra runs through the middle of it.

It produces the fluid secretions that support and nourish the sperm

Answer 27

Prostate gland

Question 28

this is a tube that extends from the bladder to the external opening at the end of the penis. The urethra carries both urine and sperm.

Answer 28

Urethra