Natural Selection and Population Change
Grade 10th Grade · Science · 85 min
What's Included
Learning Objective
I can explain how natural selection leads to changes in populations over time.
Warm-Up Video
Amoeba Sisters · 7:23
Natural Selection
Guided Notes
3 key concepts
- 1
Natural selection is a mechanism of evolution, which is change in a population over time.
- 2
In a particular environment, organisms with traits that allow them to survive and reproduce have higher fitness, and those traits become more frequent in the population.
- 3
Mutations and variations are random, but if they have a positive effect on an organism’s fitness, then that trait will be more frequent in the population over time.
Practice Questions
12 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Explain how the overuse of antibiotics can lead to antibiotic resistance in bacteria populations through natural selection.”
Complete Lesson Package
Get all 3 ready-to-use resources:
