5th grade chapter 2 science test

The _ allows nutrients to enter the cell.

• Cell membrane

• Vacuole

The _ is the control center of the cell.

• Organ

• Nucleus

Group of bone cells in your body make up bone _.

• Tissue

• Chloroplasts

You have about 640 _ that you can control.

• muscles

• organs

Organ systems do not interact with one another.

• True

• False

When you shiver, muscles are contracting to warm your body.

• True

• False

The outer layer of skin is made up of living cells.

• True

• False

Red blood cells carry oxygen to all your cells.

• True

• False

Sweat evaporates, keeping the body warm.

• True

• False

There is no limit as to how big or small a cell can be.

• True

• False