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29. An amniotic egg first evolved in fish.reptiles.echinoderms.birds.39. Which feature is NOT shared by members of the phylum Chordata? a tailgill slitsa notochorda water vascular system46. If CFCs were banned by all countries, acid rain would be eliminated.destruction of the ozone layer would stop quickly.photochemical smog would be reduced in large cities.chlorofluorocarbons already in the atmosphere would continue to destroy ozone for another century.49.Two categories of the flowering plants called angiosperms are conifers and cycads.monocots and dicots.mosses and liverworts.mold and mildew.
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