1. STAAR Review DAY 10 ORGANISMS AND ENVIRONMENTS
TEKS 8.11C (R), 7.11A (S), 7.12B (S), 7.12D (S), 7.12F (S), 7.14B (S), 7.14C (S), 6.12D (S)
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2. Traits and Environmental Changes
Why did the environmental changes in the early 1900’s in England cause the “gray” peppered moth to decline, but the “black” peppered moth increased in population?
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3. Traits and Environmental Changes
Genetic trait for skin tone and skin cancer risk
People with a genetic trait for fair skin are more likely to get skin cancer during their lifetime.
Fairer-skin humans generally originated further away from the equator than darker-skin humans.
Explain how the environment influenced early human traits for skin tone.
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4. Dichotomous Keys
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Dichotomous keys help us to identify organisms based on their physical characteristics.
What is the dichotomous key in the picture used to identify?

5. Body Systems
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6. Reproduction Sexual Reproduction Requires male and female
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Sexual Reproduction
Requires male and female
Fewer offspring
Greater genetic variation
Asexual Reproduction
Requires only one parent
Many offspring
Less genetic variation
What are the advantages of sexual reproduction in fighting off certain illnesses over multiple generations?
Some plants can reproduce asexually.
Animals reproduce sexually and produce fewer offspring.

7. Parts of a Cell Parts of a Cell Looking at the diagram on the right:
Where is the genetic material contained?
Is this cell prokaryotic or eukaryotic?
Is this cell autotrophic or heterotrophic?
Would this cell be found in the animal kingdom?
Parts of a Cell
Nucleus
Eukaryotic
Autotrophic No
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8. Human Interaction with the Oceans
Building artificial reefs to replace those damaged by humans
Many coral reefs have been damaged or destroyed by human activity and pollution.
In an effort to restore destroyed reefs, scientists have created artificial reefs like the one in the picture.
What other ways have humans influenced the ocean habitat?
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9. Would not help avoid predators
Would not help in summertime
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10. They would not have as good of a chance at survival.
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12. They would not find food
Many would starve
The change would happen slowly
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13. Oval = elongated
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16. YOU are Eukaryotic (your cells contain a nucleus)
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17. The nucleus contains DNA
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20. G E M O N H R T S F C K I L B J A Q D P
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