Reproduction & Development Review 2

Sperm cell male They come from 2 parents, so chromosomes mix, this is sexual reproduction. 29.

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

33. 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

34. Identify the process in the diagram on the left. Incomplete Metamorphosis 35. 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 36. An adaptation for reproduction in most terrestrial organisms is (1)vegetative propagation (2)internal fertilization (3)regeneration (4)mitosis

37. What is this a diagram of? 38. Identify all the structures labeled. Female reproductive system A - oviductB - ovary C - vaginaD - uterus 39. 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

40. What is the difference between an embryo and a fetus? Embryo = before 8 weeks Fetus = after 8 weeks 41. How does the fetus get nutrients? Through the placenta 42. What is the umbilical cord made of? Blood vessels from the fetus 43. What is the function of the amniotic sac and fluid? Protection, cushioning, shock absorber 44. What part of the body contracts when a woman is in labor? uterus

Sperm cell They are ½ the number

Sperm cell egg cell 48.

51. Identify all the structures that are labeled. G - ovary H - oviduct I - uterus J – urinary bladder K - vagina H - oviduct I - uterus 52. a. Where does fertilization occur? b. Where does the embryo develop?

A B C 53. 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

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

55. Which structure produces sperm cells? 56. Which structure carries sperm and urine out of the body? 57. Which structures transport sperm from the testes to the urethra? 58. Which structures release fluids that make up semen? 59. Which structure keeps the testes cooler than the rest of the body? Testes Urethra Vas deferens Glands Scrotum

61. Where did fertilization take place? 62. Where does the exchange of oxygen, nutrients and wastes occur between mother and fetus occur? 63. What protects the fetus? 3 - placenta 4 - oviduct 5 – amniotic fluid 60. Identify the structures labeled. 1 - cervix 2 – umbilical cord 3 - placenta 4 - oviduct 5 – amniotic fluid

E F G H anther petal filament sepal stigma style ovary ovule 64. Identify the structures labeled.

E F G H 65. What is the name of the female reproductive organ? 66. What is the name of the male reproductive organ? Pistil Stamen

E F G H 67. Which structures make up the pistil? 68. Which structures make up the stamen? H, G, F A, C

69. Which structure produces the male gametes? 70. Which structure produces the female gametes? 71. Which structures attract pollinators? 72. In order for a flower to be pollinated, what does the pollen attach to? anther Ovary Petals Pollen has to stick to the stigma.

73. What process does the diagram represent? Cross pollination

74. What does structure X represent? 75. What travels down structure X? Where will it go? Pollen tube Pollen, into ovules to fertilize eggs

76. What will the ovules eventually develop into once eggs are fertilized? 77. What will the ovary eventually develop into? seeds fruit

80. What is the function of the seed coat? 81. When a seeds sprouts it is called 82. What does a seed need to germinate? Protects the seed germination Oxygen, the right temperature, water