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- True or false? Wrinkly textures in rock that formed from ancient biofilms living in marine sediments are considered trace fossils.In which type of rock are you more likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of calcium carbonate sediments c. slate, a volcanic melted and cooled shale d. granite, which forms by crystallization of molten rock below the surface of the EarthTrue or false? Fossils can be body parts of ancient organisms such as bones,shells,teeth or plant leaves
- A scientist has a fossil that was found in a layer of rock close to Earth’s surface. He believes that the fossil is around 12,000 years old. Which method would best allow the scientist to confirm the actual age of the fossil? finding another fossil in a deeper layer of rock finding another fossil in the same layer of rock using carbon/nitrogen absolute dating using potassium/argon absolute datingWhich statement is true? Fossils can provide information about when life forms existed. Fossils cannot provide information about life cycles and behaviors. Fossils cannot provide information about relatedness of life forms. Fossils can provide information about the entire evolutionary process of life forms.Which of the following statements is incorrect in the context of fossilization? Minerals dissolved in the water gradually replace minerals in bones Sediments that slowly accumulate on top of the site extert increasing pressure Extreme pressure transforms the mineralized remains into rock. Impressions form detailed imprints of only external structures. Mineral particles settle out of the groundwater and crystallize inside cavities.
- Which of these processes is NOT a step of fossilization? An organism or its traces become covered by sediments, mud, or ash. Sediments quickly accumulate on top of the remains, and resulting pressure quickly transforms the mineralized remains into rock. Groundwater seeps into the remains, and minerals dissolved in the water gradually replace minerals in bones and other hard tissues. Mineral particles that crystalize inside cavities and impressions form detailed imprints of internal and external structures.Which of the following is not a known bias in the fossil record? Fossils from well-studied areas are more likely to appear in the fossil record More abundant species are more likely to be found and in the fossil record Mammals preserve better than birds. Shells and skeletons preserve better than soft-bodied animals.In which type of rock are you most likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of sedimented calcium carbonate c. slate, a volcanically melted and cooled shale d. granite, which forms by crystallization of magma cooling below Earth’s surface
- Fact or theory? Organisms that look similar have been observed to have differences when preserved in rocks of different ages.true or false? fossils can tell us which organisms live in the past.Which of the following geologic periods is not part of the Paleozoic Era? the Carboniferous Period the Cambrian Period the Cretaceous Period the Devonian Period the Ordovician Period
