Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 20, Problem 2TY
Summary Introduction
Introduction:
A species concept is a way of defining a species or an approach to distinguish species from one another. There are several species concepts as biological species concept, evolutionary lineage concept, ecological species concept and general lineage concept. Among this ecological species concept was described by an American evolutionary biologist Leigh Van Valen in 1976.
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What criteria are used in the biological species concept to define a species? Choose all that apply.- live in same habitat
- have same niche
- produce viable offspring
- have similar genetics
- look similar
- produce fertile offspring
- have similar ancestry
The biological species concept defines a species by its morphology. In other words all members of the same species look alike? True or false?
Define species, and describe limitations of the biological species concept.
Chapter 20 Solutions
Principles of Biology
Ch. 20.1 - Prob. 1CCCh. 20.1 - Prob. 1TYKCh. 20.1 - Prob. 2TYKCh. 20.2 - Prob. 1BCCh. 20.2 - Is this an example of a prezygotic or a...Ch. 20.2 - Is this an example of a prezygotic or a...Ch. 20.2 - Prob. 1TYKCh. 20.2 - Which of the following is not an example of a...Ch. 20.3 - Prob. 1BCCh. 20.3 - Prob. 1CC
Ch. 20.3 - Which of the following is an example of allopatric...Ch. 20.3 - Prob. 2TYKCh. 20.4 - Prob. 1CCCh. 20.4 - Prob. 2CCCh. 20.4 - Prob. 1TYKCh. 20 - Macroevolution refers to evolutionary changes that...Ch. 20 - Prob. 2TYCh. 20 - Prob. 3TYCh. 20 - Prob. 4TYCh. 20 - Prob. 5TYCh. 20 - Prob. 6TYCh. 20 - Prob. 7TYCh. 20 - Prob. 8TYCh. 20 - Prob. 9TYCh. 20 - Evolutionary changes in the rate or timing of...Ch. 20 - Prob. 1CCQCh. 20 - Compare and contrast different mechanisms of...Ch. 20 - A principle of biology is that populations of...Ch. 20 - Prob. 1CBQCh. 20 - Discuss the type of speciation (allopatric or...
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- Distinguish between morphological, phylogenetic and biological species concepts. What are the advantages and disadvantages of each?. What notion is common to each of the species definitions that are considered?. Why do species definitions matter in conservation biologyarrow_forwardDistinguish between morphological,phylogenetic and biological species concepts. What are the advantages and disadvantages of each ? What is common to each of the species definitions that we considered? What do species definitions matter in conservation biologyarrow_forwardWhich species concept is based on reproductive isolation? Group of answer choices A. biological B. morphological C. ecological D. phylogeneticarrow_forward
- In sympatric speciation (fill in the blank) can result in (fill in the blank) and lead to formation of new species from a population that (fill in the blank) fill in the blank with the following: is geographically isolated, gene flow, reproduction isolation, is in the same environment, genetic drift, or ecological isolationarrow_forwardWhat notion is common in the definitions of morphological,phylogenetic and biological species concept and why do species definitions matter in conservation biologyarrow_forwardArtificial classification generally shows evolutionary relationships? True or False An artificial system may use habitats as criteria for classification. True or Falsearrow_forward
- Understand the “biological species concept” and why it is not appropriate for all types of organisms.arrow_forwardDistinguish between morphology,phylogenetic and biological species concepts.what are the advantages and disadvantages of each?what notion is common to each of the species definitions that we considered?why do species definitions matter in conservation biologyarrow_forwardDescribe the “biological species concept” and explain its limitationsarrow_forward
- One of the following principle states that a species appears, exists for a time, and then goes extinct. Cross-cutting relationships The Law of Lateral Continuity The Law of Original Horizontality None of thesearrow_forwardWhich species concept defines a species as a group of individuals that can reproduce and produce fertile offspring? Morphological species concept Darwinian species concept Phylogenetic species concept Biological species conceptarrow_forwardA species is a group of_________ that evolves___________. The biological species concept identifiesspecies on the basis of their_________ . The biologicalspecies concept cannot be applied to species that reproduce_______________.arrow_forward
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