1. REPRODUCTION Unit 2, Lesson 3 Pgs. 114-121

2. RED SLIDE: These are notes that are very important and should be recorded or highlighted in your science book.
You will see an image of a page in your book when it is necessary to highlight!
Copyright © 2010 Ryan P. Murphy

3. RED SLIDE: These are notes that are very important and should be recorded in your science journal.
BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly.
Copyright © 2010 Ryan P. Murphy

4. Keep an eye out for “The-Owl” and raise your hand as soon as you see him.
He will be hiding somewhere in the slideshow
Copyright © 2010 Ryan P. Murphy

5. “Hoot, Hoot”
“Good Luck!”
Copyright © 2010 Ryan P. Murphy

6. Asexual Reproduction

7. What is Asexual Reproduction?
Pg. 114
What is Asexual Reproduction?
Asexual reproduction: one organism produces one or more new organisms that are identical to itself.
The organism that produces the new organism is called parent
Each new organism is called an offspring.
The offspring produced by asexual reproduction are genetically identical to the parent.
They can only be different if a genetic mutation happens!
Copyright © 2010 Ryan P. Murphy

8. TYPES OF ASEXUAL REPRODUCTION

9. A few ways animals reproduce without two parents.
Copyright © 2010 Ryan P. Murphy

10. Warning! Real Images of bacteria Reproduction!

14. “Please don’t watch me.” “Fission is so awkward.”

16. Binary Fission: The process by which bacteria multiplies by splitting in two.
Pg. 115
Copyright © 2010 Ryan P. Murphy

21. Budding During budding, an organism develops tiny buds on its body.
Pg. 115
Budding
During budding, an organism develops tiny buds on its body.
A bud grows until it forms a new full-sized organism that is genetically identical to the parent
Yeasts and Hydras reproduce by by budding.

22. Other Animal Examples: Sea Sponges, Coral
Offspring

23. Fragmentation Tapeworms can reproduce asexually by fragmentation.
Pg. 117
Fragmentation
Tapeworms can reproduce asexually by fragmentation.
Each segment of the worm can break off and become a new worm!
Copyright © 2010 Ryan P. Murphy

25. Fragmentation: As certain tiny worms grow to full size, they spontaneously break up into 8 or 9 pieces. Each of these fragments develops into a mature worm, and the process is repeated. (Ex: Planaria (flatworms)
Copyright © 2010 Ryan P. Murphy

26. Fragmentation: As certain tiny worms grow to full size, they spontaneously break up into 8 or 9 pieces. Each of these fragments develops into a mature worm, and the process is repeated. (Ex: Planaria (flatworms)
Copyright © 2010 Ryan P. Murphy

27. Fragmentation: As certain tiny worms grow to full size, they spontaneously break up into 8 or 9 pieces. Each of these fragments develops into a mature worm, and the process is repeated. (Ex: Planaria (flatworms)
Copyright © 2010 Ryan P. Murphy

28. Pg. 117
Regeneration
Organisms such as starfish reproduce asexually by regeneration.

30. Regeneration of Body Parts

31. Pg. 115
Spores
A spore is a specialized cell that can survive harsh conditions.
Produced asexually by one parent
Can develop into an organism, such as a fungus

32. Vegetative Reproduction (PLANTS)
Pg. 115
Vegetative Reproduction (PLANTS)
Some plants can reproduce asexually.
Runners are aboveground stems from which new plants can grow
Tubers are underground stems from which new plants can grow
Plantlets are tiny plants that grow along the edges of plant leaves

33. Runners

34. Tubers

35. Plantlets

36. What is Sexual Reproduction?
Pg. 116
What is Sexual Reproduction?
In sexual reproduction, 2 parents each contribute a sex cell to the new organism.
Half the genes in the offspring come from each parent
Offspring is NOT identical to either parent
They have a combination of traits from each parent
Copyright © 2010 Ryan P. Murphy

37. Fertilization One parent is male and the other is female
Pg. 116
Fertilization
One parent is male and the other is female
Males produce sperm cells
Females produce eggs
A sperm cell and an egg join together in a process called Fertilization.
When an egg is fertilized by a sperm, a new cell is formed
Called a Zygote, which develops into a new organism by mitosis
Copyright © 2010 Ryan P. Murphy

38. creates genetic variation
Sexual Reproduction: Genetic material from two different individuals combines into a genetically unique offspring.
Sexual reproduction
creates genetic variation
Copyright © 2010 Ryan P. Murphy

39. creates genetic variation
Sexual Reproduction: Genetic material from two different individuals combines into a genetically unique offspring.
Sexual reproduction
creates genetic variation
Copyright © 2010 Ryan P. Murphy

40. creates genetic variation
Sexual Reproduction: Genetic material from two different individuals combines into a genetically unique offspring.
Sexual reproduction
creates genetic variation
Copyright © 2010 Ryan P. Murphy

41. All plants can reproduce sexually (two parents).
Copyright © 2010 Ryan P. Murphy

42. All plants undergo sexual reproduction (two parents).
When the sperm (pollen) and egg (ovule) come together you get a zygote (seed) / baby plant.
Copyright © 2010 Ryan P. Murphy

43. Gymnosperm: Non-flowering, seeds usually arranged on a cone
Gymnosperm: Non-flowering, seeds usually arranged on a cone. The cone is the reproductive organ!
Copyright © 2010 Ryan P. Murphy

45. Wow!,
That’s a big cone!

46. “I could sure go for a sno-cone.”

47. Look at the size of this cone.

51. One
Big
Cone

52. A B Which cone is the male cone, and cone is the female cone?
Copyright © 2010 Ryan P. Murphy

53. A B Which cone is the male cone, and cone is the female cone?
Copyright © 2010 Ryan P. Murphy

54. Female A B Which cone is the male cone, and cone is the female cone?
Copyright © 2010 Ryan P. Murphy

55. Female A B Which cone is the male cone, and cone is the female cone?
Copyright © 2010 Ryan P. Murphy

56. Which cone is the male cone, and cone is the female cone?B
Copyright © 2010 Ryan P. Murphy

57. Which is the male cone (pollen producer), and which is female (egg)?B
Copyright © 2010 Ryan P. Murphy

58. Which is the male cone (pollen producer), and which is female (egg)?B
Copyright © 2010 Ryan P. Murphy

59. Which is the male cone (pollen producer), and which is female (egg)?B
Female
Copyright © 2010 Ryan P. Murphy

60. Which is the male cone (pollen producer), and which is female (egg)?B
Female
Copyright © 2010 Ryan P. Murphy

61. Which is the male cone (pollen producer), and which is female (egg)?B
Male
Female
Copyright © 2010 Ryan P. Murphy

62. B A Try again, Which is male, and which is female.
Copyright © 2010 Ryan P. Murphy

63. B A Try again, Which is male, and which is female.
Copyright © 2010 Ryan P. Murphy

64. B A Male Try again, Which is male, and which is female.
Copyright © 2010 Ryan P. Murphy

65. B A Male Try again, Which is male, and which is female.
Copyright © 2010 Ryan P. Murphy

66. B A Male Female Try again, Which is male, and which is female.
Copyright © 2010 Ryan P. Murphy

67. Flower: The reproductive organ of a plant that makes the seed.
Copyright © 2010 Ryan P. Murphy

68. Area of Focus: Parts of a Flower.

69. What does the perfect flower look like?
Copyright © 2010 Ryan P. Murphy

70. A Perfect Flower: A flower that has both the male parts and female parts in the same flower.
Copyright © 2010 Ryan P. Murphy

71. Imperfect Flower: A flower that has either all male parts or all female parts, but not both in the same flower.
Copyright © 2010 Ryan P. Murphy

72. Step by step drawing
Full to half a page needed

82. Stamen – Male part of flower-

83. Filament: Supports the anther.

84. Filament: Supports the anther.

85. Filament: Supports the anther.

86. Anther: Part of the stamen that holds the pollen.

87. Anther: Part of the stamen that holds the pollen.

88. Stamen
(Male)

89. Stamen
(Male)
filament

90. Anther
Stamen
(Male)
filament

91. Anther
Stamen
(Male)
filament

92. Anther
Stamen
(Male)
filament

93. Anther
Stamen
(Male)
filament

94. Anther
Stamen
(Male)
filament

95. Anther
Stamen
(Male)
filament

96. Which is the filament, and which is the anther? Where is the pollen?B

97. Which is the filament, and which is the anther? Where is the pollen?
and the anther is… B

98. Which is the filament, and which is the anther? Where is the pollen?B

99. Which is the filament, and which is the anther? Where is the pollen?B

100. Which is the filament, and which is the anther? Where is the pollen?B
Filament

101. Which is the filament, and which is the anther? Where is the pollen?B
Filament

102. Which is the filament, and which is the anther? Where is the pollen?B
Filament

103. Pistil: Female part of flower-
Copyright © 2010 Ryan P. Murphy

104. Stigma: Sticky bulb in the center that receives the pollen grains.
Copyright © 2010 Ryan P. Murphy

106. Female Part of the Flower

107. Style: Long stalk that the stigma sits on top of.
Copyright © 2010 Ryan P. Murphy

109. How Stylish?

110. Style

111. Style? D C A B E

112. Style? D C A B E

113. Ovary: On bottom of the flower, has the the ovules that will become seeds.
Copyright © 2010 Ryan P. Murphy

114. C A D B E
Ovary? F

115. C A D B E
Ovary? F

116. C A D B E
Ovary? F

117. Ovule: The part of the ovary that becomes the seeds.
Copyright © 2010 Ryan P. Murphy

119. Anther
Stamen
(Male)
filament

120. Anther Pistil (Female)
Stamen
(Male)
filament

121. Anther Pistil (Female)
Stigma
Anther
Pistil
(Female)
Stamen
(Male)
filament

122. Anther Pistil (Female)
Stigma
Anther
Pistil
(Female)
Style
Stamen
(Male)
filament

123. Anther Pistil (Female) Ovary
Stigma
Anther
Pistil
(Female)
Style
Stamen
(Male)
filament
Ovary

124. Ovule Anther Pistil (Female) Ovary (Egg) Stigma Stamen (Male) Style
filament
Ovary
(Egg)

125. Petal: The colorful, often bright part of the flower.
Copyright © 2010 Ryan P. Murphy

126. Petal: The colorful, often bright part of the flower.
They attract pollinators.
Copyright © 2010 Ryan P. Murphy

127. Ovule Sepal Anther Pistil (Female) Ovary (Egg) Receptacle Stigma
Style
Stamen
(Male)
Ovule
filament
Ovary
(Egg)
Sepal
Receptacle

128. Petals Ovule Sepal Anther Pistil (Female) Ovary (Egg) Receptacle
Stigma
Anther
Pistil
(Female)
Style
Stamen
(Male)
Ovule
filament
Ovary
(Egg)
Sepal
Receptacle

130. Nectar Guides

134. This is how you see the flower.
Visible Light

135. Visible Light UV – Ultra Violet Light
This is how you see the flower.
Visible Light
This is how many insects see the flower.
UV – Ultra Violet Light

136. B A Which animation is sexual reproduction and which is asexual?
Copyright © 2010 Ryan P. Murphy

137. B A Which animation is sexual reproduction and which is asexual?
Copyright © 2010 Ryan P. Murphy

138. Sexual Reproduction B A
Copyright © 2010 Ryan P. Murphy

139. B A Sexual Reproduction Asexual Reproduction
Copyright © 2010 Ryan P. Murphy

140. Advantages of Asexual and Sexual Reproduction
Pg. 118
Pg. 119
Advantages of Asexual Reproduction
Can reproduce quickly
Ensures that favorable traits are passed on to offspring
No need for a partner/mate
All offspring (not just female) can produce more offspring
Advantages of Sexual Reproduction
Increases genetic variation
Offspring have different traits that improve the chance that at least some will survive
Higher chance of survival

141. Advantages of Using BOTH Types of Reproduction
Pg. 119
Some organisms can use both types of reproduction!
Increases the chance a species will survive