Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 21.3, Problem 2C
Summary Introduction
To determine: The correct order of appearance of reptiles, mammals, amphibians, and fishes in the fossil record starting with the earliest.
Concept introduction: Molecular systematics helps the biologist to interpret the fossil record to assume the evolutionary history of animals. The scanty availability of fossils is always an obstacle for the biologist to detect the rate of divergence, age, and the number of branches of the animal groups. The fossils are precious data that can reconstruct the history of many living organisms. They are used to record the occurrence and evolution of living organisms in a geographical time scale.
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What is the correct order of appearance in the fossil record, starting with the earliest: reptiles, mammals, amphibians, fishes?
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Chapter 21 Solutions
Biology (MindTap Course List)
Ch. 21.1 - Describe the conditions that scientists think...Ch. 21.1 - Compare the prebiotic soup hypothesis with the...Ch. 21.1 - Prob. 1CCh. 21.1 - How does the ironsulfur world hypothesis differ...Ch. 21.2 - Outline the major steps hypothesized to have...Ch. 21.2 - Explain how the evolution of photosynthetic...Ch. 21.2 - Prob. 5LOCh. 21.2 - Prob. 1CCh. 21.2 - Prob. 2CCh. 21.2 - VISUALIZE Draw a simple sketch illustrating the...
Ch. 21.3 - Briefly describe the distinguishing organisms and...Ch. 21.3 - What is the correct order of appearance in the...Ch. 21.3 - Prob. 2CCh. 21.3 - What is the correct order of appearance in the...Ch. 21 - Energy, the absence of molecular oxygen, chemical...Ch. 21 - Prob. 2TYUCh. 21 - Prob. 3TYUCh. 21 - According to the hypothesis of serial...Ch. 21 - Prob. 5TYUCh. 21 - Prob. 6TYUCh. 21 - Prob. 7TYUCh. 21 - The time of greatest evolutionary diversification...Ch. 21 - Prob. 9TYUCh. 21 - The Age of Reptiles corresponds to the (a)...Ch. 21 - Evidence exists that a catastrophic collision...Ch. 21 - Flowering plants and mammals diversified and...Ch. 21 - Prob. 13TYUCh. 21 - EVOLUTION LINK If you were studying how...Ch. 21 - EVOLUTION LINK If living cells were produced in a...Ch. 21 - EVOLUTION LINK Why did the evolution of...Ch. 21 - INTERPRET DATA Evidence for the oldest...
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- how do fossils form in different locations on earth?arrow_forwardWhich of the following is the most likely organism to fossilize and be found in the fossil record? The earliest forms of bacteria A jellyfish with a soft body An octopus with a soft body A crustacean with a hard exoskeletonarrow_forwardWhy do we need to know the age of a fossil?arrow_forward
- Is the fossil record a complete picture of all of the living things that have ever existed on earth? Why or why not?arrow_forwardIn the phylogeny below, the origin of which trait could be indicated by the letter B? A single temporal opening on the side of the skull Extra-embryonic membranes A placenta Jaws Hair and mammary glands lungfish frogs salamanders caecilians parareptiles turtles lizards mosasaurs snakes ichthyosaurs plesiosaurs crocodiles ornithisichian dinosaurs non-avian saurischian dinosaurs birds eothyridids caseids varanopids ophiacodontids edaphosaurids sphenacodontids biarmosuchians dinocephalians squopowoue gorgonopsians therocephalians snupeubossejeyɔ Probainognathus uopouoɔous marsupial: monotremes placentalsarrow_forwardHow are the ancestors of modern whales different from their present form?arrow_forward
- The fossils in line 4 are blank the ones in line 1 of the diagram. A) much older B) much younger than C) slightly older than D) slightly younger thanarrow_forwardBased on anatomy, fossil, embryos, and DNA what are the closest living relatives of cetaceans, fish or mammals?arrow_forward(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.arrow_forward
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