A single-celled organism with a nucleus and organelles
A group of cells that work together to perform a certain function
the basic unit of structure and function of living things
the thin covering that surrounds every cell
the part of a cell that directs all of the cell's activities
the jellylike material inside a cell between the cell membrane and the nucleus
a group of organs that work together to do a job for the body
the organ system that turns food into nutrients that body cells need for enegry, growth, and repair
the organ system made up of the heart, blood vessels, and blood that transports materials throughout the body
the organ system, including the lungs, tat exchanges oxygen and carbon dioxide between the body and the environment
the organ system, including the bones,that protects the body and gives it structure
the organ system that includes the muscles and allows the body to move
the organ system including the brain, spinal cord, and nerves that senses your surroundings and controls other organs
the organ system, including the kidneys and bladder, that removes waste materials from the blood
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