Biology, 23.06.2019 18:00, cmflores3245
What percentage of animals on earth are vertebrates? a)5% b)25% c)50% d)95% a) is the correct answer, insects, arachnids, sponges, echinoderms, cnidarians, etc. are all invertebrates, constituting ~95-97% of all animal species. therefore, only about 3-5% of all animal species are vertebrates.
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