Key Vocab - 02. Body Organization

Front

cell

Back

A tiny unit of a living thing surrounded by a membrane.

Front

tissue

Back

A group of cells in an animal or plant body that are like each other and do similar things.

Front

epithelial tissue

Back

A protective layer of tissue usually a single layer, that lines the cavities and outside of an organism.

Front

muscle tissue

Back

Tissue in the body of animals and humans that moves other parts of the body by contracting or relaxing.

Front

nervous tissue

Back

Tissue that is able to carry messages to and from the brain to other parts of the body.

Front

connective tissue

Back

Tissue in the body, such as fat, cartilage, or bone, that holds together or supports organs and other tissue.

Front

organ

Back

A part of plants or animals that perform a particular task, like the heart, lungs, skin, eyes, etc.

Front

organ system

Back

A group of organs that perform a similar task, like the respiratory system, nervous system, etc.

Front

organism

Back

A living thing, like a plant, animal, or bacterium.

Front

homeostasis

Back

The body’s processes to maintain internal stability while adjusting to changes in external environments.