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The rate at which a parent atom creates daughter atoms is always _____. unstable and changing constant and unique unstable and rare never found in nature
Weegy: The answer is constant and unique. User: Biologists use molecular clocks to try to measure _____. when a molecule was created how long molecules have existed when two species separated from a shared ancestor when two species will merge to become one species Weegy: 2.how long molecules have existed User: The law that states rock layers closest to the surface are the newest or youngest rock is _____. law of original horizontality law of superposition law of original lateral continuity law of gravity and oppositional force law of cross-cutting relationships Question #2MultipleChoice Score: According to stratigraphy and its laws, what is the correct order—from oldest to youngest—of the following rock strata: B, C, A, DD, C, B, AB, C, D, AA, B, C, D Question #3MultipleChoice Score: A geologist is studying layers of rock. He finds a fossil with an imprint of a shelled animal. According to the law of faunal and floral succession, what new type of fossil would he most likely find next, in the layer of rock above it? a fossil of an amphibiana fossil of a reptilea fossil of a fisha fossil of a human Question #4MultipleSelect Score: Select all answers that apply. To develop a molecular clock, you need to find which of the following? a sequence of moleculesthe rate at which changes occur in a type of moleculehow much total change has occurred in a type of molecule from two different specieshow many molecules a species has Question #5MultipleSelect Score: Select all the answers that apply. Biological evidence of the age of the earth includes _____. radioactive dating of rocksfossil evidencecomparative anatomymolecular clocksgradual processes of rock formation Question #6MultipleChoice Score: Absolute dating tells you _____. when an event occurred in yearsthe relative age of different rock layersif one species of animal evolved before anotherthe sequence of a series of events Question #7MultipleChoice Score: Not only does sediment spread ... (More)
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Expert Answered
Asked 12/3/2012 7:12:40 AM
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The climate of the Earth throughout history has always _____. remained cold and frigid stayed at a constant temperature remained hot and humid fluctuated between hot and cold periods
Weegy: The climate of the Earth throughout history has always: fluctuated between hot and cold periods. User: Select all the answers that apply. Geological evidence of the age of the earth includes _____. radiometric dating of rocks fossil evidence comparative anatomy molecular clocks gradual processes of rock formation Weegy: All can be applied. User: Select all of the answers that apply. The Cretaceous-Tertiary extinction, the most famous of the Big Five, has been attributed to what major event(s) that triggered the extinction of the dinosaurs? an asteroid hitting the earth massive volcanoes erupting around the world rapid growth of forests on land surfaces falling sea levels increased competition from mammals (More)
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Updated 344 days ago|7/21/2014 5:15:28 PM
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Geological evidence of the age of the Earth includes: radiometric dating of rocks, fossil evidence, and gradual processes of rock formation.
Added 344 days ago|7/21/2014 5:10:26 PM
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The Cretaceous-Tertiary extinction, the most famous of the Big Five, has been attributed to either of two major events that triggered the extinction of the dinosaurs: an asteroid hitting the Earth, or massive volcanoes erupting around the world.
Added 344 days ago|7/21/2014 5:15:28 PM
This answer has been confirmed as correct, not copied, and helpful.
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