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An ______ is a unicellular organism.
A ____ is the basic structural and functional unit of all organisms.
_______ is a scientific term used for the central part of the cell.
A _____ is a marine colonial polyp characterized by a calcareous skeleton.
A _____ is usually sedentary with a hollow cylindrical body and a ring of tentacles around the mouth.
An _________ is a terrestrial worm that burrows into and helps aerate soil.
A _________ is a free-swimming coelenterate with stinging tentacles.
A _____ is a bloodsucking creature that looks like a worm.
A ________ is an animal of the subkingdom Metazoa.
__________ is the substance of a living cell.
A _________ is a single-celled microscopic animal.
A _________ is a temporary outgrowth used by some microorganisms as an organ of feeding or locomotion.
A ______ is a porous mass of interlacing fibers that forms the internal skeleton of various marine animals.
A ______ is an organ specialized for sucking nourishment or for adhering to objects by suction.
An ________ the disc of a jellyfish used to move through water.
A ____ is relatively small elongated animal that burrows through earth.
