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terrestrial life remote from water became possible as soon as the adult ... aquatic type of egg. Table II shows that in a variety of cases 50 ... amniotic space ... of the water necessary for development is provided by the oviductal ... The origin of truly terrestrial vertebrates was associated with the develop- ...
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jeb.biologists.org/cgi/reprint/6/1/26.pdf
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The conditions were such that there was not a great deal of pressure to develop into a truly terrestrial animal. Features of the Amphibians that ... They produce amniotic eggs, but the bird eggs have additional egg protein termed albumin. Their fertilization is internal but development of the egg is always external.
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kentsimmons.uwinnipeg.ca/16cm05/1116/chordate.htm
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Changes in genes controlling the time of development could alter the moment of ... Vertebrates became active predators because of their more complex nervous ..... Evolution of the amniotic egg expanded the success of vertebrates on land. ... The amniotic eggs enabled terrestrial vertebrates to complete their life ...
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www.cbu.edu/~esalgado/BIOL112/Campbell/ch34.doc
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The Cambrian truly is an astonishing period in evolution of life on earth. Most major groups of ... The first detailed record of vertebrates appears during the Cambrian as fossils of jawless fish. ... Carboniferous Period (360 to 286 mya) "The Age of Plants" - Reptiles and the amniotic egg appear (Carboniferous Fossils)
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www.fossilmuseum.net/Paleobiology/Paleozoic_paleobiolog...
www.fossilmuseum.net/Paleobiology/Paleozoic_paleobiology.htm
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Terrestrial vertebrates have their pouches modified for various purposes; ... Some suggest larvae became sexually mature without developing tunicate characteristics; thus, a urochordate larva was ancestral to vertebrates; ... The amniotic egg is a superb adaptation to life on land. While amphibians need to lay their eggs in...
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www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDiver...
www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDiversity_9.html
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Class Reptilia: The First Truly Land Adapted Animals. Amniotic Egg; Achieving ... The amniotic egg is a key reproductive adaptation to terrestrial life. It allowed terrestrial vertebrates to complete their life cycles on land and sever ... Born early in development and complete embryonic development while nursing ...
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student.ccbcmd.edu/~sschmit4/BIOL%20111/Animal%20Repro%...
student.ccbcmd.edu/~sschmit4/BIOL%20111/Animal%20Repro%20and%20Development/Animal%20Evolution09.ppt
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; Preparation Packet ... May 14, 2007 ... a. Discuss TWO examples of how cell death affects the development and functioning of a multicellular organism...
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www.msdellasantina.com/Files%20AP/AP%20EXAM%20STUDY%20P...
www.msdellasantina.com/Files%20AP/AP%20EXAM%20STUDY%20PACKET_2007.htm
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Vertebrates could never be truly terrestrial until their reproduction and embryonic development became separate from standing or running water. ... For vertebrates, internal fertilization and the amniotic egg, made complete movement to land possible.
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www.snow.edu/allans/biology1320/reptilia.html
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During the development of the vertebrates, bone replaces cartilage gradually in the course of maturation. The growing plates ... Vertebrates became truly terrestrial with the evolution in the reptiles of the amniote egg. Amniote eggs are eggs that retain their own water supplies and can survive on land.
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www.infusion.allconet.org/webquest/SJB.html
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