cell, tissue, organ, organ system, organism
a living thing.
a group of organs that work together to perform a major function.
a structure composed of different kinds of tissue that perform a specific function.
a group of similar cells that perform a specific function.
the basic unit of structure and function in a living thing.
Structures: bones, joints, ligaments, and cartilages
Function: supports and protects the body.
Structures: muscles, tendons
Function: enables movement of the body and internal organs.
Structures: heart, veins, arteries, capillaries, blood
Function: transports oxygen and nutrients to the cells of the body.
Structures: trachea, lungs, bronchi, alveoli
Function: takes in oxygen and eliminates carbon dioxide
Structures: Mouth, esophagus, stomach, small and large intestine
Function: breaks down food and absorbs nutrients.
Structures: brain, spinal cord, nerves
Function: detects information from the environment and controls body functions.
Structures: skin, lungs, kidneys, ureters, bladder, urethra
Function: removes wastes produced by cells
Structures: white blood cells, antibodies, lymph nodes, skin
Function: defends the body against disease
the body's ability to respond to its environment to keep itself alive.
a process that happens in mitochondria where oxygen is chemically combined with glucose in a cell to release energy.