The “control center” of the cell.
What is the nucleus
All living things need this clear liquid to survive.
What is water
The organ that pumps blood through your body
What is the heart
This system carries blood through the body
What is the circulatory system?
This organ is the hardest in the body
Bone (or Tooth)
The part of the cell that makes energy, often called the “powerhouse.”
What is the mitochondria
All living things can make more of their own kind.
Reproduction
The organ that helps you breathe.
Lungs
This system takes in oxygen and lets out carbon dioxide.
What is the respiratory system
The number of bones in an adult human body (close guess counts).
206
The jelly-like fluid inside the cell.
What is cytoplasm
The process by which living things break down food to get energy.
What is Digestion
The largest organ of the body.
Skin
This system protects your body and includes the skin.
What is the integumentary system
The muscle that never gets tired.
What is the heart
The part of the cell that found surrounding the outside of the cell
Cell membrane
All living things respond to changes in their environment. These changes are called ___.
Stimuli or Stimulus
The organ that absorbs food and nutrients in your stomach and intestines.
What is the digestive system
This system sends messages through your body using the brain, spinal cord, and nerves.
What is the nervous system
The part of your body that keeps growing your whole life
ears or nose