Mounting is a medium in which biological specimens are mounted for either preservation or display.
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What is an allele.one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
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Answer:
Chordates share some common traits. At some point in their life cycle, they have a notochord, a nerve cord, and pharyngeal (fayr uhn JEE uhl) slits in the neck or throat. The notochord is a flexible rod that supports the animal's back. ... Sharks are one type of vertebrate animal that have backbones made of cartilage.
