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12 terms

Anatomy Ch 1 Part 2

STUDY
PLAY
chemical level
the lowest level of organization that is composed of atoms and molecules
matter
anything that has mass and occupies space
atom
are the smallest particles that are considered matter
molecule
two or more atoms joined together
cell
the smallest living thing in an organism
organelles
the organs of cells
tissue
a bunch of cells grouped together so they can work together to accomplish a purpose (e.g. bone tissue structurally supports the body)
epithelial
tissue that covers or lines stuff
connective
tissue that has tons of extracellular matrix
extracellular matrix
stuff that surrounds the cells in a tissue (and is in fact produced by them)
organ
a combination of two or more types of tissue that perform a complicated function (e.g. the stomach has epithelial and muscle tissue and it digests food)
carbon dioxide
what we breathe out