Reproduction & Development Review 2

38. The number of chromosomes found in human gametes is

(1)46(2) 92(3) 23

Sperm cell

male

They come from 2 parents, so chromosomes mix, this is sexual reproduction.

39.

40. The development of different organs and tissues from the embryonic germ layers is called

(1.) ovulation  (2.) menstruation  (3.) cleavage  (4.) differentiation

41.

42

43. a. What kind of fertilization is taking place above?b. Explain why so many eggs are released during this process?

c. What kind of organisms use this process?

External fertilization

To increase the chance of fertilization

Aquatic organisms

44. Identify the process in the diagram on the left.

Incomplete Metamorphosis

45. The process in which insect species change their body shape form and become adults is known as

(1) mitosis(2) metamorphosis(3) meiosis(4) cleavage

46. Metamorphosis in which larva develop inside pupa is known as

(1)incomplete metamorphosis (2) transitional metamorphosis (3) embryonic metamorphosis (4) complete metamorphosis

47. An adaptation for reproduction in most terrestrial organisms is

(1)vegetative propagation(2)internal fertilization(3)regeneration(4)mitosis

48. What is this a diagram of?

49. Identify all the structures labeled.

Female reproductive system

A - oviduct

B - ovary

C - vaginaD - uterus

50. What is the name of the process that produces gametes?

(1)Mitosis(2)Binary fission(3)Asexual reproduction(4)Meiosis

51. What is the difference between an embryo and a fetus?•Embryo = before 8 weeks•Fetus = after 8 weeks52. How does the fetus get nutrients?•Through the placenta53. What is the umbilical cord made of?•Blood vessels from the fetus54. What is the function of the amniotic sac and fluid?•Protection, cushioning, shock absorber55. What part of the body contracts when a woman is in labor?•uterus

Sperm cell

They are ½ the number.

56.

57.

22

58.

Sperm cell

egg cell

59.

60.

61.

62. a. What structure produced estrogen and progesterone?

b. Where does a zygote develop?

c. Where is the egg fertilized?

d. Where does the placenta form?

B - ovary

D - uterusA - oviduct

D - uterus

63. Identify all the structures that are labeled.

G - ovary

H - oviduct

I - uterus

J – urinary bladderK - vagina

64. Where are sperm produced?•testes65. What fluid carries sperm out of the body?•semen66. What two body systems is the urethra a part of?•Reproductive and excretory systems67. What are the sperm ducts called?•Vas deferens68. Why are the testes located externally?•To keep the testes cooler so they can produce sperm.

69.

a. Where does fertilization occur?

b. Where does the embryo develop?

H - oviduct

I - uterus

A

B

C

70. Identify the names of all structures labeled. A – vas deferens

B - testesC - urethra

D

E

F

G

H

D - penisE - glandF - glandG - glandH – urinary bladder

71. Identify the structures labeled.

A – urinary bladderB - urethraC - penis

D – vas deferens

E - testesF - scrotum

72. Which structure produces sperm cells?

73. Which structure carries sperm and urine out of the body?

74. Which structures transport sperm from the testes to the urethra?

75. Which structures release fluids that make up semen?

76. Which structure keeps the testes cooler than the rest of the body?

Testes

Urethra

Vas deferens

Glands

Scrotum

77. In the human male, sperm leave the body through the

(1.) urethra (2.) testes (3.) epididymis (4.) vas deferens

78. In the human male, gametes are produced in the

(1.) prostate gland (2.) testes (3.) bladder (4.) urethra

79. Sperm is transported to the urethra by tubes called

(1.) prostate gland (2.) testes (3.) bladder (4.) vas deferens

80. In human males, sperm cells are suspended in a fluid medium. The main advantage gained from this adaptation is that the fluid 

(1.) activates the egg nucleus so that it begins to divide 

(2.) provides currents that propel the egg down the oviduct 

(3.) removes polar bodies from the surface of the sperm  (4.) acts as a transport medium for sperm

81. Identify the structures labeled.

1 - cervix

2 – umbilical cord3 - placenta

4 - oviduct5 – amniotic fluid

82. Where did fertilization take place?

83. Where does the exchange of oxygen, nutrients and wastes occur between mother and fetus occur?

84. What protects the fetus?

3 - placenta

4 - oviduct

5 – amniotic fluid

E

F

G

Hanther

petal

filament

sepal

stigma

style

ovary

ovule

85. Identify the structures labeled.

E

F

G

H

86. What is the name of the female reproductive organ?87. What is the name of the male reproductive organ?

Pistil

Stamen

E

F

G

H

88. Which structures make up the pistil?

89. Which structures make up the stamen?

H, G, F A, C

90. Which structure produces the male gametes?

91. Which structure produces the female gametes?

92. Which structures attract pollinators?

93. In order for a flower to be pollinated, what does the pollen attach to?

anther

Ovary

Petals

Pollen has to stick to the stigma.

94. What process does the diagram represent?

Cross pollination

95. What does structure X represent?

96. What travels down structure X? Where will it go?

Pollen tube

•Pollen, into ovules to fertilize eggs

97. What will the ovules eventually develop into once eggs are fertilized?

98. What will the ovary eventually develop into?

seeds

fruit

99.

100.

101. What is the function of the seed coat?

102. When a seeds sprouts it is called

103. What does a seed need to germinate?

Protects the seed

germination

Oxygen, the right temperature, water