Reproduction and Development

Question 1

Parthengenesis

Answer 1

A process in which the egg develops without being fertilized and the adults that result are haploid

Question 2

Hermaphrodites

Answer 2

Can mate with any animal of their species (male or female)

Question 3

Traits of Asexual Reproduction

Answer 3

1. Animals can reproduce w/out mate
2. Creates numerous offspring quickly
3. No expenditure of energy maintaining hormonal cycles or reproductive systems
4. Best when environment is stable and non-stressed

Question 4

Fission

Answer 4

Asexual

Separation of an organism into two new cells

Question 5

Budding

Answer 5

Splitting off of new individuals from existing ones

Question 6

Fragmentation

Answer 6

Single parent breaks into parts that regenerate into new individuals

Question 7

Testes

Answer 7

Male gonads

the site of sperm formation

Question 8

Vas defrens

Answer 8

the duct that carries sperm during ejaculation

Question 9

Prostate gland

Answer 9

large gland that secretes semen into urethra

Question 10

Scrotum

Answer 10

sac that holds the testes

cool temperature

Question 11

Uretha

Answer 11

tube that carries semen and urine

Question 12

Ovary

Answer 12

where meiosis occurs

Question 13

Oviduct or Fallopian Tube

Answer 13

where fertilization occurs

the egg moves through the oviduct to the uterus

Question 14

Uterus

Answer 14

where the blastula stage of the embryo will implant and develop

Question 15

Vagina

Answer 15

the birth canal

Question 16

Cervix

Answer 16

the mouth of the uterus

Question 17

Endometrium

Answer 17

lining of the uterus

Question 18

Order of Female Menstrual Cycle

Answer 18

Follicular Phase

Ovulation

Luteal Phase

Menstruation

Question 19

Follicular Phase

Answer 19

Estrogen is released in response to FSH from the anterior pituitary

Question 20

Ovulation

Answer 20

Secondary oocyte ruptures out of ovaries in response to a rapid increase in LH from anterior pituitary

Question 21

Luteal Phase

Answer 21

Estrogen and progesterone thicken the endometrium lining of the uterus

Question 22

Menstruation

Answer 22

uterus sheds its lining

Question 23

Hypothalamus and Menstrual Cycle

Answer 23

Releases GnRH

Stimulates the anterior pitutary to release FSH and LH

Estrogen and progesterone are released

Question 24

Spermatogenesis

Answer 24

the process of sperm production

LH starts the process

2n divides by mitosis

then second 2n divides by meiosis

starts at puberty

Question 25

Oogenesis

Answer 25

the production of ova begins before birth Female baby born with all oocytes she will ever have During puberty second oocytes are activated

Question 26

Cleavage

Answer 26

rapid mitotic cell division of the cell division of the zygote that begins immediately after fertilization

Question 27

Blastula

Answer 27

end of cleavage is characterized by the production of a fluid-filled ball of cells

Question 28

Gastrulation

Answer 28

rearrangement of the blastula to a three germ layers

Question 29

Ectoderm

Answer 29

Skin and nervous system

Question 30

Endoderm

Answer 30

Digestive organs Viscera (lungs and liver)

Question 31

Mesoderm

Answer 31

Blood Bones Muscle

Question 32

Organgenesis

Answer 32

cell contintue to differentiate and specialize, producing organs from the three germ layers

Question 33

Chorion

Answer 33

bird embryo that is under the shell and allows for diffusion of respiratory gases

Question 34

Yolk Sac

Answer 34

encloses the yolk, food for growing embryo

Question 35

Amnion

Answer 35

encloses the embryo in protective amniotic fluid

Question 36

Allantos

Answer 36

equal to the placenta in humans respiratory gases to embryo nitrogenous waste accumulates until it hatches