Biology

Biology, 26.07.2019 05:00, KittyLitty

According to the concept of punctuated equilibrium, the "sudden" appearance of a new species in the fossil record means that

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Biology, 01.08.2019 00:50, hargunk329

The fossil record contains many examples of appearance; that is, fossils of organisms that appeared and remained in a specific location for extended periods of time. what is lacking in the fossil record are those small, incremental changes during speciation. in many cases, scientists have been unable to find these transitional forms. one reason for the lack of transitional fossils is that conditions must be just right for fossils to form. another explanation proposed by scientists is that species are generally stable and rarely change for millions of years. there is then a rapid burst of change, rather than the usual slow-paced evolution, that results in a new species and the transitional form leaves few fossils behind. this rapid change in species that rarely leaves behind fossil evidence is referred to as a) natural selection. b) adaptive radiation c) directional selection. d) punctuated equilibrium.

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Biology, 02.08.2019 00:30, kmchippps

Propose an explanation why there might be a sudden appearance of a species in the fossil record. 1.the fossil record is incomplete and the previous members of the lineage did not leave a fossil. 2.the fossil record is complete. 3.that species lived in an area that had an abundance of water and mud. 4.fossils could not be found in that layer of rock

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Biology, 06.08.2019 16:10, katlian

Which of the following statements is true regarding the biological species concept? the biological species concept can be applied easily to all bacterial species. given the generation time of certain organisms, the biological species concept can be difficult to test. the biological species concept is synonymous with the morphospecies concept. the biological species concept was first described by charles darwin. using the biological species concept, scientists can determine which organisms in the fossil record likely belonged to the same species.

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Biology, 07.09.2019 18:10, mem81

Propose an explanation why there might be a sudden appearance of a species in the fossil record. the fossil record is incomplete and the previous members of the lineage did not leave a fossil. the fossil record is complete. that species lived in an area that had an abundance of water and mud. fossils could not be found in that layer of rock

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