Explore this vocabulary list: Animals, Invertebrates. Make the most of these interactive activities and resources to help you learn. Choose between games, tests, and downloadable activities to learn in a way that suits you.
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amoeba |
An amoeba is a unicellular organism.
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cell |
A cell is the basic structural and functional unit of all organisms.
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nucleus |
Nucleus is a scientific term used for the central part of the cell.
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coral |
A coral is a marine colonial polyp characterized by a calcareous skeleton.
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polyp |
A polyp is usually sedentary with a hollow cylindrical body and a ring of tentacles around the mouth.
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earthworm |
An earthworm is a terrestrial worm that burrows into and helps aerate soil.
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jellyfish |
A jellyfish is a free-swimming coelenterate with stinging tentacles.
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leech |
A leech is a bloodsucking creature that looks like a worm.
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metazoan |
A metazoan is an animal of the subkingdom Metazoa.
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protoplasm |
Protoplasm is the substance of a living cell.
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protozoan |
A protozoan is a single-celled microscopic animal.
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pseudopod |
A pseudopod is a temporary outgrowth used by some microorganisms as an organ of feeding or locomotion.
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sponge |
A sponge is a porous mass of interlacing fibers that forms the internal skeleton of various marine animals.
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sucker |
A sucker is an organ specialized for sucking nourishment or for adhering to objects by suction.
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umbrella |
An umbrella the disc of a jellyfish used to move through water.
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worm |
A worm is relatively small elongated animal that burrows through earth.
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