Body Systems

How many Body Systems do humans have?

• 4

• 12

• 3

• 8

Is a plant an organism?

• Yes.

• Depends on the type of plant.

• No.

• Only big trees are considered organisms.

How many levels of cellular organization do we study?

• Two

• Four

• Three

• Five

What is the simplest level of cellular organization?

• Cell.

• Tissue.

• Organism.

• Organ.

Skin is...

• a cell.

• a tissue.

• an organ.

• a system.

Blood is a(n)...

• organ

• tissue

• cell

• system

Neurons are the cells of our...

• feet.

• heart.

• skin.

• brain.

Tissues work together in a(n)..

• system.

• cell.

• tissue.

• organ.

Are all Body Systems necessary to be alive?

• Yes.

• No.

Microscopes are necessary to observe cells.

• True.

• Just with the small cells.

• False.

• Just with bigger cells.