Cell Theory

Cell Theory

Cell theory is one of the fundamental principles of biology. It states that

• All living things are made of cells.
• Cells are the basic units of life.
• All cells come from pre-existing cells.

Scientists developed this theory over time by studying microscopic organisms and ob...

If your teacher asks what animals are made of? You might say bones, muscles, and blood. But what are those made of? The answer is cells.

Cells are the basic building blocks of all living things. Some, like bacteria, may have just one cell, while others, like humans, have trillions.

The idea that all living things are made up of cell...