r

2. Organisms have to reproduce (make
babies) so their species can survive.

3. If a species stopped reproducing , it
would eventually go extinct.

4. Definition:
There are of reproduction:
reproduction reproduction.

5. Same Same
genes genes

6. asexual reproduction: only one parent;
offspring genetically identical to parent
Examples of asexual reproduction

7. asexual reproduction: only one parent;
offspring genetically identical to parent
Example of asexual reproduction

8. The of asexual reproduction is
that it is
.
Example of asexual reproduction

9. The of asexual reproduction i
that there is in offspring
are .

10. The following are two MORE
examples of asexual reproduction:

11. asexual reproduction: only one parent;
offspring genetically identical to parent
Example of asexual reproduction

12. Cloning is a type of asexual reproduction.
Cloning produces a new individual
genetically identical to the parent

13. In the 1990’s a sheep named Dolly was
successfully cloned

15. sexual reproduction:
A. the a
B. the
C. The two
D. The
over a 9 month
period (in humans)
E. The
.

16. Now answer #1- 20

17. :

18. …

22. Mitosis is why damaged body parts heal!

23. Now answer # 21- 31

28. .

31. Now answer # 32- 39.

35. Word!
We’re some
cool cats!

37. Now answer # 40-43.

38. Fertilization:

39. (sperm or eggs)
46 is the
chromosome
number for
humans

40. : all

42. fertilization (the uniting of the gametes)
creates a unique offspring.

43. The offspring gets half of its genes from
each parent but it is a unique individual.

44. Advantages and disadvantages of meiosis
(sexual reproduction)

45. Advantages:
• Creates a great deal of variations in species.
• The variations help a species to survive.
• The variations can lead to natural selection
and evolution.

46. Zygote
Formation, Growth
and Differentiation:

47. The following is how multi-
cellular organisms reproduce:

48. sperm and egg
combine, results in a zygote (a fertilized
egg).

49. (a fertilized egg) has 46
chromosomes (for humans).
A
zygote

50. The zygote undergoes a
called . The cells divide and divide
and divide and divide….without growing in
size.

51. from steps A to E, the cells are
. None of the cells have a
specialized function. At steps F and G
begins.

52. whe
n the cells become . The cells change
becoming the body parts of the embryo.

53. after the cells have
becoming the body parts of the embryo. The
embryo grows until the baby is born.

54. This shows . By
day 56, the embryo is fully-formed, it just
has to grow to full term.

55. are the
(1st three months)
of pregnancy
..

56. A development question like this may be
on the regents

57. You must know the steps of development for the
regents!

58. You must know the steps of
development for the regents!

59. Now answer #44-61

60. Human
Reproduction
and
Development

61. You must know the human
reproductive systems and what each
part does for the regents….

62. For the male reproductive system: you only
need to know that organ “X” is .
The testes
.

63. The female reproductive system is
more complicated than the male’s

64. You have know a lot more….

65. A: (ova)
.

66. B: (oviduct)

67. C:
.

68. A different picture of female
reproductive system.
Fallopian
tube
uterus

69. A Woman’s 28 day menstrual cycle is
regulatedby hormones

71. You must know that the
(growing
baby).

72. A: is the . The
.

73. are from the baby
.

74. 1: birth canal

75. 2: umbilical cord

76. 3: placenta

77. 4: fallopian tube (oviduct)

78. 5: fluid sac

79. Summary:
You must know the steps of reproduction
for the regents.

80. What process is steps 1 ?

81. What process is steps 1 ?
Meiosis (aka Oogenesis)

82. What process is step 2?

83. What process is step 2?
Meiosis (spermatogenesis)_

84. What process is step 3?

85. What process is step 3? fertilization

86. What process is step 4?

87. What process is step 4? differentiation

88. What process is step 5?

89. What process is step 5? growth

90. Now answer # 87- 97