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Fish
A fish is any member of a paraphyletic group of organisms that consist of all ... of a hinged jaw is greater biting force, improved respiration, or a combination of factors. ... The term "fish"... |
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Deuterostomes: Echinoderms, Chordates
Craniates. Craniates are chordates with a head. The head contains sensory organs because it is in front of the animal ... Bony fish are the largest group of vertebrates. ... The larvae (tadpoles) are aquatic and use gills for respiration. ... Reptiles do not need to use their skin for gas exchange because the lungs are sufficient. |
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Echinodermata Respiratory System | Study.com
There are no lungs, there's no windpipe, and there's certainly no chest rising and ... They are an ancient group with strange, five-pointed bodies and a kinship with our own ... Many echinoderms also use a simple hemal system, a series of pockets and ... . Vertebrates: Origin, Characteristics & Diversity6:02; Jawless Craniat... |
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Amniotes: Definition and Evolutionary Characteristics - Video ...
Following this, some craniates developed that backbone that makes a ... This group, called the amniotes, are tetrapods with a terrestrially adapted ... They also can't 'breathe' through this tough skin, so they take in most of their oxygen by breathing through their lungs. ... See for yourself why 10 million people use Study... |
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Highlights in the Evolution of Vertebrates
Keywords: Craniata, craniates, vertebrates, evolution, fish, reptiles, dinosaurs, mammals, humans ... Others consider the chordate sister group to comprise the ... . which may be modified into a lung or lungs in more derived forms, ... . Using a ' molecular clock' (determining the rate of a gene's evolution by ... |
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Canyon Critters - SabinoNaturalists - Sabino Canyon Volunteer ...
This is to set up a front page with Critters sorted into groups. ... A fish is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that ... Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely ... |