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Ctenoid - Wikipedia, the free encyclopedia
Ctenoid means 'having the margin toothed like a comb'. It is used to the scales of some fishes, such as perciforms that have such a toothed margin. Ctenoid scales are essentially cycloid scales with ...
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Ctenoid - Definition of Ctenoid at Dictionary.com a free online dictionary with pronunciation, synonyms, and translation of Ctenoid. Word of the Day and Crossword Puzzles. ... Use ctenoid in a Sentence...
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As cycloid and ctenoid scales increase in size, growth rings called circuli become visible. These rings look a little like the growth rings in the trunk of a tree. During the cooler months of the year the scale (and otoliths) grows more slowly and the circuli are closer together leaving a band called an annulus.
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Definition of ctenoid from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... : having the margin toothed <ctenoid scale>; also : having or consisting of ctenoid scales <ctenoid fishes>
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Definition of ctenoid from Webster's New World College Dictionary. Meaning of ctenoid. Pronunciation of ctenoid. ctenoid synonyms. ctenoid usage examples and ctenoid quotes. ... Browse dictionary definitions near ctenoid...
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Britannica online encyclopedia article on ctenoid scale (anatomy), ...but are covered with a peculiar enamel-like substance called ganoin. It is thought that true teeth developed from placoid scales. The advanced fish have either cycloid scales (e.g., carp) or ctenoid scales (e.g., perch; ... CREATE MY ctenoid scal...
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Ctenoid: Biology Comblike. ... The distinction between the ctenoid scale types, therefore, is primarily based upon their form. ... Ctenoid Fish Scale - Three general types of ctenoid scales have been categorized, but each type is composed of two key sections; a rigid surface layer chiefly consisting of crystallized calcium...
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Derived from the Greek word cteno, meaning 'comb', the ctenoid fish scale name refers to comb-like ctenii, which decorate the edges of the scale, as illustrated in the relatively low magnification MIC-D digital image presented below. ... View a medium magnification image of a ctenoid fish scale.
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Similar to trees, the age of a fish may be estimated by examining growth rings on its ctenoid scales. ... Similar to trees, the age of a fish may be estimated by examining growth rings on its ctenoid scales. This is because as a fish grows, so does its scales. The increase in size leaves rings, known as circuli,
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What is a(n) ctenoid scale – Our zoology dictionary has ecology, physiology, genetics of ctenoid scale, and the evolution of ctenoid scale. Encyclopedia.com: Dictionary of Zoology ... ctenoid scale In bony fish, a type of scale that has many tiny, tooth-like processes (ctenii) in the posterior, or outer segment.
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