EBK BIOLOGY
12th Edition
ISBN: 8220102797383
Author: Mader
Publisher: YUZU
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Chapter 17, Problem 2TS
At a recent school board meeting, a member of the audience started that there is not enough evidence to support how various species have arisen. Due to this lack of evidence, he or she think that students should be presented with alternative ideas to the theory of evolution. Indicate the scientific lines of evidence that are used to support the process of
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A population of chipmunks lives across the length of a valley in the mountains. One day a large section of the mountain breaks off, and the resulting rockslide divides the valley in half. Over time, the chipmunks on either side of the rockslide evolve and become different species. What type of speciation is this?
What is a reason that speciation can occur?
Organisms within a species are brought into closer proximity by a physical barrier.
Organisms within an ecosystem make adaptions that involve different breeding times or interactions.
Organisms develop traits that are not beneficial to their survival, and these traits are passed from generation to generation.
Organisms develop traits that are beneficial and pass on the same traits to all future generations within the same species.
Scientists often talk about the evidence for evolution. Using the five types of evidence listed here, explain how each suggests the occurrence of evolution: 1) structural homologies, 2) molecular homologies, 3) developmental homologies, 4) fossils (general) and 5) transition fossils.
Chapter 17 Solutions
EBK BIOLOGY
Ch. 17.1 - Prob. 1CYPCh. 17.1 - Prob. 2CYPCh. 17.1 - Prob. 3CYPCh. 17.2 - Prob. 1CYPCh. 17.2 - Prob. 2CYPCh. 17.2 - Prob. 3CYPCh. 17.3 - Prob. 1CYPCh. 17.3 - 2. Discuss how the study of developmental...Ch. 17.3 - Prob. 3CYPCh. 17 - Prob. 1NS.1QC
Ch. 17 - Prob. 1NS.2QCCh. 17 - Prob. 1E.1QCCh. 17 - Prob. 1E.2QCCh. 17 - Prob. 1ACh. 17 - Prob. 2ACh. 17 - Prob. 3ACh. 17 - Prob. 4ACh. 17 - Prob. 5ACh. 17 - Prob. 6ACh. 17 - Prob. 7ACh. 17 - Prob. 8ACh. 17 - Prob. 9ACh. 17 - Prob. 10ACh. 17 - Prob. 11ACh. 17 - Prob. 12ACh. 17 - Prob. 13ACh. 17 - Prob. 14ACh. 17 - Prob. 15ACh. 17 - You want to decide what definition of a species to...Ch. 17 - At a recent school board meeting, a member of the...Ch. 17 - Prob. 3TSCh. 17 - Prob. 4TS
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- Ancestral state reconstruction allows evolutionary biologists to answer which of the following questions? The likelihood of speciation events for species on the tree. The evolutionary transition rates between different trait combinations. The evolutionary age of multiple species with the same trait. The evolutionary trajectory of extinct species.arrow_forwardIn the given below option which of the following is not a component of evolution bynatural selection?1. Variation exists within a population.2. Organisms compete for resources.3. Individuals have different reproductive success.4. Organisms adapt due to environmental changes.5. Species are fixed.arrow_forwardWhy do scientists consider vestigial structures evidence for evolution?arrow_forward
- Which of the following evolutionary processes is associated with allopolyploidy? (a) gradualism (b) allometric growth (c) sympatric speciation (d) mass extinction (e) preadaptationarrow_forwardWhat is the difference between micro- and macroevolution? a. Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants. b. Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms. c. Microevolution describes the evolution of populations, while macroevolution describes the emergence of new species over long periods of time. d. Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.arrow_forwardWhich of the following is a good description of Sympatric speciation? A. Speciation without geographic isolation B. Changes in sequence of DNA of an organism C. Speciation due to geographical isolation D. The change in the genetic characteristics of a population of organisms over timearrow_forward
- Why do related species share homologous traits? Please choose all the FALSE options. a) Related species have independently evolved homologous traits. b )Related species inherited homologous traits from a common ancestor. c ) Related species share homologous traits because they are found in the same geographical area. d) Related species have adapted to similar environmentsarrow_forwardSometimes similar structures appear in organisms due to similar environmental selective pressures and not due to ancestry (analogies). This process is called.... Group of answer choices speciation homologies evolution homoplasyarrow_forwardn which situation would it make sense to use the morphological species concept? When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed When working with fossils from extinct organisms When you only have genetic data about each organism in your study When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive dataarrow_forward
- The type of speciation that takes place in geographically overlapping populations is known as ________________________. A. Allopatric speciation B. Sympatric speciation C. Morphological speciation D. Physiological speciationarrow_forwardWhich of the following is the only correct pairing for two concepts that mean the same thing? Homologous trait – independently evolved Shared derived trait – shared ancestral trait Common origin – convergent evolution Independent origin – convergent evolutionarrow_forwardA species is a group of individual organisms that interbreed and produce fertile, viable offspring. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring. Evolution is an important mechanism in the formation of new species. The evolution of a new species requires several components including all, BUT A) Evolution of a new species requires a long time. B) Evolution of a new species requires the need for a genetic change. C) Evolution of a new species requires a separation that prevents interbreeding. D) Evolution of a new species requires mutations that produce new genetic traits. not graded use photoarrow_forward
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