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Reproduction & Development Review 2. 38. The number of chromosomes found in human gametes is (1)46 (2) 92 (3) 23.

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Presentation on theme: "Reproduction & Development Review 2. 38. The number of chromosomes found in human gametes is (1)46 (2) 92 (3) 23."— Presentation transcript:

1 Reproduction & Development Review 2

2 38. The number of chromosomes found in human gametes is (1)46 (2) 92 (3) 23

3 Sperm cell male They come from 2 parents, so chromosomes mix, this is sexual reproduction. 39.

4 40. The development of different organs and tissues from the embryonic germ layers is called (1.) ovulation (2.) menstruation (3.) cleavage (4.) differentiation

5 41. 42

6 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

7 44. Identify the process in the diagram on the left. Incomplete Metamorphosis

8 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

9 46. Metamorphosis in which larva develop inside pupa is known as (1)incomplete metamorphosis (2) transitional metamorphosis (3) embryonic metamorphosis (4) complete metamorphosis

10 47. An adaptation for reproduction in most terrestrial organisms is (1)vegetative propagation (2)internal fertilization (3)regeneration (4)mitosis

11 48. What is this a diagram of? 49. Identify all the structures labeled. Female reproductive system A - oviduct B - ovary C - vagina D - uterus

12 50. What is the name of the process that produces gametes? (1)Mitosis (2)Binary fission (3)Asexual reproduction (4)Meiosis

13 51. What is the difference between an embryo and a fetus? Embryo = before 8 weeks Fetus = after 8 weeks 52. How does the fetus get nutrients? Through the placenta 53. What is the umbilical cord made of? Blood vessels from the fetus 54. What is the function of the amniotic sac and fluid? Protection, cushioning, shock absorber 55. What part of the body contracts when a woman is in labor? uterus

14 Sperm cell They are ½ the number. 56. 57.

15 22 58.

16 Sperm cell egg cell 59.

17 60. 61.

18 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 - uterus A - oviduct D - uterus

19 63. Identify all the structures that are labeled. G - ovary H - oviduct I - uterus J – urinary bladder K - vagina

20 64. Where are sperm produced? testes 65. What fluid carries sperm out of the body? semen 66. What two body systems is the urethra a part of? Reproductive and excretory systems 67. What are the sperm ducts called? Vas deferens 68. Why are the testes located externally? To keep the testes cooler so they can produce sperm.

21 69. a. Where does fertilization occur? b. Where does the embryo develop? H - oviduct I - uterus

22 A B C 70. Identify the names of all structures labeled. A – vas deferens B - testes C - urethra D E F G H D - penis E - gland F - gland G - gland H – urinary bladder

23 71. Identify the structures labeled. A – urinary bladder B - urethra C - penis D – vas deferens E - testes F - scrotum

24 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

25 77. In the human male, sperm leave the body through the (1.) urethra (2.) testes (3.) epididymis (4.) vas deferens

26 78. In the human male, gametes are produced in the (1.) prostate gland (2.) testes (3.) bladder (4.) urethra

27 79. Sperm is transported to the urethra by tubes called (1.) prostate gland (2.) testes (3.) bladder (4.) vas deferens

28 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

29 81. Identify the structures labeled. 1 - cervix 2 – umbilical cord 3 - placenta 4 - oviduct 5 – amniotic fluid

30 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

31 E F G H anther petal filament sepal stigma style ovary ovule 85. Identify the structures labeled.

32 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

33 E F G H 88. Which structures make up the pistil? 89. Which structures make up the stamen? H, G, F A, C

34 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.

35 94. What process does the diagram represent? Cross pollination

36 95. What does structure X represent? 96. What travels down structure X? Where will it go? Pollen tube Pollen, into ovules to fertilize eggs

37 97. What will the ovules eventually develop into once eggs are fertilized? 98. What will the ovary eventually develop into? seeds fruit

38 99. 100.

39 101. 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

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