The basic building blocks of living organisms; can carry out all basic life processes

• trait
• cell
• behavior
• multicellular organisms

Made of only one cell; can carry out all basic life processes

• unicellular organisms
• multicellular organisms
• human body systems
• trait

A living thing made of one or more cells

• inherited trait
• human body systems
• unicellular organisms
• multicellular organisms

Groups of body parts that work together to carry out all the body's functions

• respiratory system
• circulatory system
• human body systems
• digestive system

Takes in oxygen from the air we breathe

• respiratory system
• digestive system
• nervous system
• skeletal system

Breaks down food so it can be used by the body

• respiratory system
• digestive system
• nervous system
• skeletal system

Carries oxygen, food, and wastes throughout the body

• respiratory system
• circulatory system
• nervous system
• muscular system

Breaks down food so it can be used by the body

• respiratory system
• digestive system
• nervous system
• skeletal system

A characteristic that a living thing develops after it is born

• acquired trait
• inherited trait
• unicellular organisms
• multicellular organisms

A characteristic a living thing gets from its parents

• inherited trait
• acquired trait
• unicellular organisms
• multicellular organisms