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, 22.06.2019 06:00
Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave
Answers: 3
Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Biology, 22.06.2019 16:20
Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred
Answers: 1
Biology, 23.06.2019 00:40
What happens when a population reaches its carrying capacity
Answers: 1
The fossil record contains many examples of appearance; that is, fossils of organisms that appeared...
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