Much of The Origin of Species was comprised of C. Darwin\'s assembling all the e
ID: 86915 • Letter: M
Question
Much of The Origin of Species was comprised of C. Darwin's assembling all the evidence for evolution that he could. Which of the following pieces of evidence came after Darwin died? A) Artificial selection B) Direct study/observation of nat. sel. In action C) Biogeography D) Homologous Structures What is true of the "Cambrian explosion"? A) There are no fossil of animals in geological strata that are older than the Cambrian explosion. B) The Cambrian explosion is evidence for the instantaneous creation of multicellular life on Earth. C) The Cambrian explosion reflects a period of incredible diversification of the animal phyla. D) The Cambrian explosion may not have been as "explosive" as was once thought; it probably took 30 million years (or more). E) Both C & D are correct. Which of the following is a characteristic of adult echinoderms? A) exoskeleton B) penta-radial symmetry C) branched gastrovascular cavity Which statement about the genomes of prokaryotes is correct? A) Prokaryotic chromosomes are sometimes called plasmids. B) Prokaryotic genomes are composed of circular DNA. C) The prokaryotic chromosome is not contained within a nucleus but, rather, is found at the nucleolus.Explanation / Answer
51) the answer is (B)direct study /observation of natural selection in action
52) the answer is (B)-the cambrian explosion is the evidience for instaneous creation of multicellular life on earth
53)the answer is (B)penta radial symmetry
54)the answer is (B)
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