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- 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.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 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.
- True or false? Fossils can be body parts of ancient organisms such as bones,shells,teeth or plant leavesWhich 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.True or false? Wrinkly textures in rock that formed from ancient biofilms living in marine sediments are considered trace fossils.
- Four organisms are analyzed for various biological features as described below. Plant Multicellular Fossils found in Fossils with Fossils with fruiting Fossils with stromatolites teeth bodies stomates A No Yes No No No B Yes No Yes No No Yes No No Yes No Yes No No No Yes Part A: Explain how to tell which major groups of living things these come from and how to tell whether they may come from an aquatic habitat or from a terrestrial habitat, if it is possible to tell. Part B: Decipher which organism comes from what major groups of organisms and explain how you deciphered this. B red 000 吕口 F3 F1 F2 O00 F4 F7 F8 % 2 3 6 8 W E R T * 00The field of geology helped to set the stage for the Theory of Evolution through an understanding that life on Earth is millions of years old erosion can reveal ancient strata of sediment fossils of ancient life can be found in these ancient strata of rock all of the above OO OOWhich organism is most likely to fossilize? A tropical frog A forest dwelling lizard All animals have the same probability of leaving fossil behind A marine snail A jellyfish
- (1) What is the most common way for a dead organism to avoid decomposition? (2) Why do researchers look for fossils in places that are now dry and barren instead of other places like forests or grasslands? (3) What kind of dating from the lecture or textbook would be the best method for finding the number of years ago when a volcanic rock was formed? (4) Why is the pelvis of a biped shorter and wider than the pelvis of a quadruped? (5) Does the overall shape of Lucy’s pelvis resemble the human pelvis or the chimpanzee pelvis more? Do not think of the size, but compare the outlines of each bone. This is Lucy's skelton below.Preserved remains of animals e.g. bones and shells are examples of trace fossilsWhich 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