Reproduction

Question 1

What are the advantages of asexual reproduction

Answer 1

Can reproduce in isolation, creates offspring quickly, no expenditure of energy to maintain reproductive systems

Question 2

What are the types of asexual reproduction

Answer 2

Fission- separation of a organism into 2 new cells
Budding- breaking off the original cells
Fragmentation- break down and regeneration of the cells
Parthenogenesis- development of the egg without fertilization

Question 3

What is the function of the testes, vas deferns, prostate gland, uthera, scrotum

Answer 3

Testes- site of sperm production
Vas deferns- carries sperm during ejaculation from the epididymis to the penis
Prostate gland- secrets semen into the urethra
Urethra- tube that carries semen and urine
Scrotum- sac that carries the testes

Question 4

What is the function of the ovary, fallopian tube, uterus, vagina, cervix, endometrium

Answer 4

Ovary- where meiosis occurs
Fallopian tube- where fertilization occurs
Uterus- where the embryo will develop
Vagina- birth canal
Cervix- mouth of the uterus
Endometrium- lining of the uterus

Question 5

Describe the follicular phase, ovulation, luteal phase, and mensturation

Answer 5

Follicular phase- increased amount of estrogen is produces in response to FSH
Ovulation- secondary oocyte ruptures because of LH
Luteal phase- estrogen and progesterone thicken the endometrium
Menstruation- buildup of the lining of the uterus breaks, tissue and blood are discharged from the vagina

Question 6

Spermatogenesis

Answer 6

Is the process of sperm production, LH induces the testes to produce testosterone. FSH and testosterone stimulate sperm production

Question 7

Oogenesis

Answer 7

The production of the ova

Question 8

What is the process of embryonic development

Answer 8

1-zygote
2-cleavage: rapid Mitotic division, the end is called blastula, individual cells are called blastomeres the fluid inside is called blastocoel
3-gastrulation: differentiation: the rearrangement of the blastula into 3 germ layers called gastrula
4-Organogenesis: cells continue to differentiate producing organs
5-fetus

Question 9

Extraembryonic membranes of the bird embryo

Answer 9

Chorion- allows for diffusion of respiratory gases
Yolk sac- enclosed the yolk
Amnion- enclosed the embryo
Allantois- place where nitrogenous waste accumulates until hatching