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1. fossil and fossil records2. biogeography3. comparative anatomy4. comparative embryology5. molecular biology

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During his trip on the Beage, Darwin found that ___. A) plants and animals living on a continent seemed more closely related to each other than to plants and animals living in similar regions on other continents B) fossils found on a particular continent were clearly not related to the plants and animals living on that continent today C) plants and animals living in temperate regions were most similar to each other, regardless of the continent on which they were found D) plants and animals were similar on every continent in every type of region

99% of all species that have ever existed on planet earth are now extinct. which of the following statements best explains this fact?a) climate changes associated with large comet or asteroid impacts occur faster than organisms can change themselves and adapt the new environmental conditions.b) genetic variations within a population occur through random mutations, and given enough time, the environment will change in such a way that no existing genetically-based phenotypes permit survival.c) the accumulation of random mutations in the genome of all organisms eventually leads to frameshift mutations and critical genes and are ultimately lethal.d) the rapid increase in global temperatures in the past 100 years, combined with ocean acidification, heavy metal contamination, and ozone depletion caused by human activities has caused 99.9% of all our species to go extinct.

ist eine mit sensiblen Nerven in Verbindung stehende Einrichtungen zur Aufnahme von Reizen, die aus vielen Rezep-toren, welche von Schutz- und Hilfszellen umgeben sind, besteht.

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