Animal Reproduction & Development

Question 1

What are the mechanisms of asexual reproduction?

Answer 1

• budding
• fission
• fragmentation and regeneration
• parthenogenesis

Question 2

new individuals arise from outgrowths

Answer 2

budding

Question 3

separation of a parent organism into 2 individuals

Answer 3

fission

Question 4

breaking of the body into pieces that develop into adults

Answer 4

fragmentation and regeneration

Question 5

development of an individual from an unfertilized egg

Answer 5

parthenogenesis

Question 6

What are the mechanisms of sexual reproduction?

Answer 6

• gametogensis
• spermatogenesis
• oogenesis

Question 7

production of gametes

Answer 7

gamteogenesis

Question 8

development of sperm

Answer 8

spermatogenesis

Question 9

development of a mature egg

Answer 9

oogenesis

Question 10

Which part of life does spermatogenesis occur in?

Answer 10

adolescence and adulthood

Question 11

Which part of life does oogenesis occur in?

Answer 11

the mitosis part is complete before birth

Question 12

In what gender does spermatogenesis occur in?

Answer 12

males

Question 13

In what gender does oogenesis occur in?

Answer 13

females

Question 14

What is one big difference between spermatogenesis and oogenesis?

Answer 14

oogenesis ends with a polar body and a fertilized egg and spermatogenesis ends with all four cells developed into sperm

Question 15

sexual reproduction involving the union or fusion or two dissimilar games

Answer 15

anisogamy

Question 16

each individual had male and female reproductive systems

Answer 16

hermaphroditism

Question 17

change from one sex to the other

Answer 17

sex reversal

Question 18

What are the 3 processes that embryos go through before becoming zygotes?

Answer 18

fertilization, cleavage, and gastrulation

Question 19

rearrangements into a 3-layered embryo

Answer 19

gastrulation

Question 20

development of organ rudiments from 3 germ layers

Answer 20

organogenesis

Question 21

fusion of a sperm and egg leading to the formation of a zygote

Answer 21

fertilization

Question 22

entry of multiple sperm nuclei into egg

Answer 22

polyspermy

Question 23

a period of rapid cell division without growth

Answer 23

cleavage

Question 24

5-7 cleavage divisions form a _________

Answer 24

blastula

Question 25

fluid-fill cavity inside blastula

Answer 25

blastocel

Question 26

ball of cells with a fluid-filled cavity

Answer 26

blastula

Question 27

a set of cells at or near the surface of the blastula to an interior location

Answer 27

gastrulation

Question 28

opening through which cells migrate

Answer 28

blastopore

Question 29

digestive tubes

Answer 29

archentron

Question 30

hollow blastula that is reorganized into a 2- or 3-layer embryo

Answer 30

gastrula

Question 31

What organs are produced from the ectoderm?

Answer 31

- epidermis of skin and its derivatives - nervous and sensory systems - pituitary glands - adrenal medulla - jaws and teeth - germ cells

Question 32

What organs are produced from the endoderm?

Answer 32

- lining of digestive tract its organs - lining of respiratory, excretory, and reproductive tracts - thymus - thyroid - parathyroid glands

Question 33

What organs are produced from the mesoderm?

Answer 33

- skeletal and muscular systems - circulatory and lymphatic systems - excretory and reproductive systems - dermis of skin - adrenal cortex