1. Notes Science Tennessee SPI Objective:
Adaptations
Notes
Science
Tennessee SPI Objective:
Analyze structural, behavioral, and physiological adaptations to predict which populations are likely to survive in a particular environment.
Instructions for Students
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2) If you need help, please communicate with your teacher.
3) If needed, there are videos about how to do this on YouTube.
Essential Question
How do species adapt their behavior and their
physical structure in order to survive?
Check for Understanding
Identify an organism’s adaptations that enable it to survive and/or thrive in a specific environment.

2. Definition: To adapt means to change in order to survive and/or thrive in a specific environment.
Two types of adaptations:
1) Behavioral:
2) Structural:
what an organism does
concerns the shape and form of the body
Question: See the insects in the picture below?
Can you see them?
Is this mainly behavioral or structural adaptation?
This is called camouflage
This is mainly structural adaptation because these insects have adapted by developing bodies that look like thorns.

3. Two types of adaptations: 1) Behavioral- what an organism does
2) Structural- concerns the shape and form of the body
Look at the image of the hibernating bear
Question: Is this a mainly a behavioral or structural adaptation?
This is behavioral because it is an action that the animal does.

4. Two Key Behavioral Adaptations requires 2 parents (male and female)
1) Sexual Reproduction:
requires 2 parents (male and female)
Advantage: Genetic diversity which results in greater adaptability
Disadvantage: Large amount of time and effort to find a mate
Advantage: No time and effort needed to find a mate
Disadvantage: Lack of genetic diversity which results in less adaptability
2) Asexual Reproduction:
requires only 1 parent
Reproduces sexually
Dogs
Hydra
Reproduces asexually

5. Notes SPI 0807.5.2 Adaptations 1) When environmental changes occur…
Science
1) When environmental changes occur…
…organisms must change (adapt) by either changing their behavior or changing their body structure or both.
2) The process that drives this…
… is called natural selection.
3) Changes and variations in populations result from…
…sexual reproduction (over many generations) and changes in the environment.
4) Changes and variations also result from…
…genetic mutations (over many generations)
and changes in the environment.

6. Four Phases of Natural Selection
Overproduction
Too many offspring are born.
Phase 1
Genetic Variation in a Population
Offspring are born with a variety of traits. Some offspring are better suited to survive than others.
Phase 2
Struggle to Survive
Offspring compete for limited resources. Many die or are eaten by predators.
Phase 3
Successful Reproduction
The stronger, smarter, faster offspring survive to breed with each other.
Phase 4

7. SPI
Adaptations
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8. SPI
Adaptations
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9. SPI
Adaptations
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10. SPI
Adaptations
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11. SPI
Adaptations
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