LEVELS OF ORGANIZATION
The smallest unit of life
What is a cell?
The system that supports the body and protects organs
What is the skeletal system?
Organ that pumps blood
What is the heart?
System that breaks down food
What is the digestive system?
System that controls responses to stimuli
What is the nervous system?
A group of similar cells working together
What is a tissue?
Where red blood cells are produced
What is bone marrow?
Tubes that carry blood throughout the body
What are blood vessels?
Tube that carries food from mouth to stomach
What is the esophagus?
The brain and spinal cord together
What is the central nervous system?
Different tissues working together to perform a function
What is an organ?
The place where two bones meet
What is a joint?
System responsible for gas exchange
What is the respiratory system?
Organ where most nutrients are absorbed
What is the small intestine?
System that protects the body and regulates temperature
What is the integumentary system?
A group of organs working together
What is an organ system?
Muscle type attached to bones
What is the muscular system?
Blood cells that carry oxygen
What are red blood cells?
System that removes liquid wastes
What is the excretory system?
Blood cells that help fight disease
What are white blood cells?
Maintaining a stable internal environment
What is homeostasis?
System that works with the skeletal system to allow movement
What is the muscular system?
System that transports oxygen from lungs to body cells
What is the circulatory system?
Organs that filter waste from blood
What are the kidneys?
When body systems work together to keep balance
What is homeostasis?