cell

A chicken egg is a cell.

• True

• False

Only ____________ cells have a cell wall instead of a cell membrane.

• plant

• animal

• white blood

• living

Animals cells and plant cells are exactly the same.

• True

• False

A River

• alive

• not alive

A Tree

• alive

• not alive

How many cells do you have in your body?

• hundreds
• thousands
• millions
• trillions

Every living organism is made up of one or more cells

• True

• False

Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

• controls what enters and exits the cell
• contains chlorophyll
• thick and rigid

The invention of the microscope made it possible for people to discover and learn about

• Plants
• Skin 
• Animals 
• Cells