Operculum (gastropod) - Alchetron, The Free Social Encyclopedia
Operculum (gastropod) - Alchetron, The Free Social Encyclopedia
4 months ago
alchetron.com
Operculum (fish) - Alchetron, The Free Social Encyclopedia
Operculum (fish) - Alchetron, The Free Social Encyclopedia
Aug 18, 2017
alchetron.com
Operculum (animal) - Alchetron, The Free Social Encyclopedia
Operculum (animal) - Alchetron, The Free Social Encyclopedia
Aug 18, 2017
alchetron.com
Operculum in biology
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Operculum in biology
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humix.com
operculum (1993) - Movie
operculum (1993) - Movie
Jun 1, 1993
moviefone.com
Some species of shark are oviparous, meaning they lay eggs externally. The shark egg contains an embryo and a yolk sac, much like a chicken's egg. These eggs are encased in a leathery, watertight shell. #SharkWeek 🦈 🥚 | Science Channel
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Neat video our research team recorded of a whale shark clearing its gill rakers. As you can see whale sharks lack an operculum (protective bony flap that covers the gills) that is present in bony fish. This is just one of the many difference between Elasmobranchs(sharks and rays) and Osteichthyes(bony fish). Elasmobranch even comes from the Latin elasm (beaten metal, derivative of elaunein or elastic) and branchii (gill). #marinebiology #whaleshark | Maldives Whale Shark Research
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