19
Lesson 19 of 84 · Evolution
LessonAdaptations Over Generations
What You'll Learn
Cells are the basic units of life. All living things are made of one or more cells. Plant cells have cell walls and chloroplasts that animal cells lack.
Key Words
- allele
- cell
Steps
Step 1 — Read
Read and learn: Cells are the basic units of life. All living things are made of one or more cells. Plant cells have cell walls and chloroplasts that animal cells lack.
Step 2 — Do
Build your model using the materials provided.
Step 3 — Observe
Draw a picture of what you observe.
Step 4 — Record
Answer the questions based on your data.
Check Your Understanding
Question 1
1 of 3What is the basic unit of life?