What is the basic unit of life?
What part of the plant makes food using sunlight?
Which gas do humans need to breathe in to survive?
What do we call animals that eat only plants?
Where does digestion start in the human body?
What is the process of a caterpillar turning into a butterfly called?
Which part of the human body is responsible for thinking?
How many lungs does a human normally have?
Frogs can live in both:
What gives plants their green color?
