Michaela Mathews

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an individual animal, plant, or single-celled life form.

many mammals) a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine.

having or consisting of many cells

a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its c

the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

In biology, an organ system is a group of organs that work together to perform one or more functions

a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.