Transcript Chapter 09

CHAPTER
NEW CHAPTER
Reproduction
the BIG idea
Reproductive systems allow the production of offspring.
9.1 Organisms reproduce in different ways.
9.2 Plants can reproduce in several ways.
9.3 Human reproduction is a complex process.
CHAPTER OUTLINE
CHAPTER RESOURCES
9.1
KEY CONCEPT
CHAPTER HOME
Organisms reproduce in different ways.
VOCABULARY
gamete
gamete
A sperm or egg cell, containing half the usual
number of chromosomes of an organism (one
chromosome from each pair), which is found
only in the reproductive organs of an organism.
fertilization
zygote
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.1
KEY CONCEPT
CHAPTER HOME
Organisms reproduce in different ways.
VOCABULARY
gamete
fertilization
Part of the process of reproduction in which a
male reproductive cell and a female
reproductive cell combine to make a new cell
that can develop into a new organism.
fertilization
zygote
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.1
KEY CONCEPT
CHAPTER HOME
Organisms reproduce in different ways.
VOCABULARY
gamete
zygote
A fertilized egg formed by the union of an egg
cell and a sperm cell; a zygote can develop
into a mature individual.
fertilization
zygote
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.1
CHAPTER HOME
KEY CONCEPT
Organisms reproduce in different ways.
• All living things can produce offspring.
VOCABULARY
• Asexual reproduction is efficient, but offspring lack
genetic diversity.
gamete
• Sexual reproduction increases genetic variation in
offspring.
zygote
fertilization
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CHAPTER
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SECTION
OUTLINE
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
vegetative propagation
A form of asexual reproduction in plants, in
which offspring are produced from nonreproductive tissues such as leaves, stems,
and roots.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
pollen
Tiny multicellular grains that contain the
undeveloped sperm cells of a plant.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
seed
A plant embryo that is enclosed in a protective
coating and has its own source of nutrients.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
embryo
A multicellular organism, plant or animal, in its
earliest stages of development.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
ovule
A structure in a female reproductive system
that holds an immature egg cell.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
VOCABULARY
vegetative
propagation
fruit
The ripened ovary of a flowering plant that
contains the seeds.
pollen
seed
embryo
ovule
fruit
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.2
KEY CONCEPT
CHAPTER HOME
Plants can reproduce in several ways.
- Some plants reproduce using spores, while
others use pollen and seeds to produce
offspring.
- A seed provides protection and nutrients for
the plant embryo.
VOCABULARY
vegetative
propagation
pollen
seed
embryo
ovule
- In angiosperms, flowers produce pollen.
Flowers and fruit attract animals.
fruit
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CHAPTER
RESOURCES
SECTION
OUTLINE
9.3
KEY CONCEPT
CHAPTER HOME
Human reproduction is a complex
process.
VOCABULARY
menstruation
menstruation
A period of about five days during which blood
and tissue exit the female mammal’s body.
placenta
umbilical cord
fetus
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.3
KEY CONCEPT
CHAPTER HOME
Human reproduction is a complex
process.
VOCABULARY
menstruation
placenta
An organ that transports materials between a
pregnant female mammal and the offspring
developing inside her body.
placenta
umbilical cord
fetus
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.3
KEY CONCEPT
CHAPTER HOME
Human reproduction is a complex
process.
VOCABULARY
menstruation
umbilical cord
A long tube in a pregnant female mammal that
connects the developing offspring to the
placenta.
placenta
umbilical cord
fetus
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.3
KEY CONCEPT
CHAPTER HOME
Human reproduction is a complex
process.
VOCABULARY
menstruation
fetus
The developing human embryo from eight
weeks to birth.
placenta
umbilical cord
fetus
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
9.3
CHAPTER HOME
KEY CONCEPT
Human reproduction is a complex
process.
• The female produces eggs, and the male produces
sperm.
• Fertilization leads to pregnancy.
• Following fertilization, the fetus develops over
a period of about nine months.
VOCABULARY
menstruation
placenta
umbilical cord
fetus
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CHAPTER
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SECTION
OUTLINE