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the internal supporting framework made of cartilage and/or bone. This type of skeleton occurs in the vertebrate groups.
(also called the stele) the region that includes the pericycle and the vascular tissues in a...
(also called heterotrophic organisms) organisms that are not able to produce their own organic...
unicellular fungi, most of which reproduce asexually by a process called budding.
a duct through which saliva passes from the salivary gland into the mouth.