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17 Cards in this Set

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  • Back
VIRUS
a tiny particle that can reproduce only inside the cells of living things.
BACTERIA
tiny, one-celled organisms, some of which can cause diseases
CELL
the basic unit of a living organism
CELL MEMBRANE
a thin layer that makes up the outside of the cell and controls what enters and leaves it.
NUCLEUS
the cell part that controls the cell's activites; the center of an atom, where protons and neutrons are located
CYTOPLASM
jellylike material that fills most of a cell
CELL WALL
a stiff outer layer that helps keep plant cells firm
CHLOROPLAST
the green cell part in plant cells that traps and uses light energy
KINGDOM
the largest group into which scientists classify living things
MONERAN
One-celled, no separate nucleus example: bacteria
PROTIST
most one-celled, have nucleus and other cell structures, example - algae, ameba
FUNGUS
mostly many-celled, cannot move, absorb nutrients from other organisms, example - mushrooms, yeast, molds
CLASSIFY
to arrange in groups using a system
INVERTEBRATE
an animal that has no backbone
VERTEBRATE
an animal with a backbone
INVERTEBRATE
sponges, jellyfish, worms, sea stars, mollusks, and arthropods
VERTEBRATE
fishes, frogs, snakes, birds and cats