Cells (AP)

Organisms whose cells do not have a nucleus are called _____.

Organisms with cells that have a nucleus are called . . .

The basic unit of structure and function in an organism is the . . .

Cell theory states that...

Which characteristic of living things is represented in the picture?

Identify the characteristic: When a dog is too hot, he will sweat through his paws and pant to cool himself down.

What characteristics of living things does the following statement refer to?

Human beings take in oxygen and give out carbon dioxide.

Which characteristic of living things is being shown here?