Lesson 35 of 84 · Cells
Lesson⭐ 30 XP🌿 Wild JungleHomologous Structures: Evidence for Evolution (Part 2)
Homologous Structures: Evidence for Evolution (Part 2).
🎯 Your mission
Learn the rule. Then catch nature using it.
⚡ The twist
What the body does in one minute is wilder than any cartoon.
Mind = Blown
🦠 You have more bacterial cells in your body than human cells.
Make a hypothesis first
Guess: how does the body solve this problem?
What You'll Learn
Homologous structures are similar body parts in different species that suggest a common ancestor. The arm bones of humans, whales, bats, and dogs share the same basic structure.
Key Words
- adaptation
- fossil record
- species
Steps
Read about Cells and write down three key facts.
Research one genetic disorder. Create an infographic showing its cause, symptoms, and how it is inherited.
Watch carefully for any changes and note the time.
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What are homologous structures?
Where you see this in real life
This is why plants grow toward windows and why scabs form.
Stretch Challenge
Try this in real life this week.
Watch a plant or pet for 5 minutes today and write down what you noticed.
For the dinner table
“Tell me something you noticed about your own body today.”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
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Send it to a parent who's looking for a 10-minute kitchen science win.
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