One cell or many
Why?
Some living things are made of just one cell, while plants and animals are made of millions of cells working together.
A single amoeba oozes across the screen, stretching out an arm to swallow a speck of food, all by itself in one cell.
Press the button to watch a one-celled amoeba feed and a frog egg divide into many cells.
Loading the 3D picture.
Drag the picture to look around.
One cell splits into 2, then 4, 8, 16 and on, building up into the shape of a tiny frog.
Interactive labs
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Worked example
One cell divides into 2. Each of those divides again. How many cells are there now?