Lesson 71 of 84 · Cells
Lesson⭐ 30 XP🌿 Wild JungleSelective Breeding (Part 4)
Selective Breeding (Part 4).
🎯 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
Selective breeding is when humans choose organisms with desired traits to reproduce. Dog breeds, crop varieties, and livestock have been developed through thousands of years of selective breeding.
Key Words
- natural selection
- adaptation
- fossil record
Steps
Review the background information on Cells before starting.
Create a Punnett square to predict the offspring of two parents. Use a trait like eye color or seed shape. Calculate the probability of each outcome.
Note any unexpected results and think about why they happened.
Share your findings with the class or a partner and discuss what you learned.
Check Your Understanding
Question 1
1 of 3What is a mutation?
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.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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