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Ch 18 lesson 4

How organisms are classified

kingdom One of the five groups into which living things are classified.
microorganism An organism that is too small to be seen without a microscope.
protist An organism that usually is one-celled and has plantlike or animal-like properties.
algea Protists that have plantlike qualities and ususlly live in water
protozoam A protist that has animals-like qualities: some have properties of both plants and animals.
flagellum A whiplike tail that helps some one-celled organisms move (plural is flagella)
cilia Hairlike structures that help some one-celled organisms move.
pseudopod Part of some one-celled organisms that sticks out like a foot to move the cell along.
amoeba A protozoan that moves by pushing out parts of its cell.
paramecium A protozoan that moves by using hairlike cilia (plural is paramecia.
euglena A protozoan that behaves like both plants and animals.
fungus An organism that usually has many cells and decomposes material for its food (plural is fungi).
decompose To break down or decay matter into simpler substances.
parasite An organism that absorbs food from a living organism and harms it.
moneran An organism, usually one-celled, that does not have organelles.
Created by: gfau