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Lesson 46 of 84 · Genetics
ExperimentNatural Selection: Survival of the Fittest (Part 3)
What You'll Learn
Adaptations develop over many generations through natural selection. Structural adaptations (like thick fur), behavioral adaptations (like migration), and physiological adaptations (like venom production) all help survival.
Key Words
- meiosis
- trait
- dominant
Materials Needed
- ruler
- scissors
- microscope (or magnifying glass)
- slides
- onion skin
Safety First
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Step 1 — Read
Read the introduction and identify the main idea of this lesson.
Step 2 — Do
Research one genetic disorder. Create an infographic showing its cause, symptoms, and how it is inherited.
Step 3 — Observe
Observe what happens and describe it in detail.
Step 4 — Record
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What is selective breeding?