Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 17.1, Problem 1CYL
- describe how biologists define species and explain why it is difficult to develop a criterion for distinguishing species?
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Answer Bank
requires interbreeding individuals
does not work well if there is high morphological variation in a species
defines species as a metapopulation that exchanges alleles and shares an evolutionary lincage
defines species by morphological characteristics
may group morphologically different populations as the same species
only applies to species that reproduce sexually
defines species as a group that possesses distinguishing characteristics from other groups
Chapter 17 Solutions
Biology
Ch. 17.1 - One way to determine the number of species on...Ch. 17.1 - Prob. 1TCCh. 17.1 - The tiny frog paedophryne amauensis was discovered...Ch. 17.1 - describe how biologists define species and explain...Ch. 17.1 - describe the biological species concept and...Ch. 17.1 - list some reasons why it can be hard to tell...Ch. 17.2 - describe the main types of premating and...Ch. 17.2 - provide examples of each type of mechanism?Ch. 17.3 - Make a list of events or processes that could...Ch. 17.3 - How might conservation scientists use the map...
Ch. 17.3 - It is not surprising that the forests of New...Ch. 17.3 - Prob. 3TCCh. 17.3 - Prob. 4TCCh. 17.3 - Prob. 5TCCh. 17.3 - One possible explanation for the distinctive...Ch. 17.3 - describe the two general steps that are required...Ch. 17.3 - explain the difference between allopatric and...Ch. 17.3 - explain adaptive radiation and describe the...Ch. 17.3 - interpret an evolutionary tree diagram?Ch. 17.4 - If specialization puts a species at risk for...Ch. 17.4 - Prob. 1CTCh. 17.4 - describe the main causes of extinction?Ch. 17.4 - Prob. 2CYLCh. 17.4 - Given that genetic isolation is the first step in...Ch. 17 - The biological species concept is difficult or...Ch. 17 - Which of the following does not describe a...Ch. 17 - All instances of speciation require a. genetic...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - A species is a group of ________ that evolves...Ch. 17 - Fill in the following with the appropriate...Ch. 17 - Formation of a new species occurs when two...Ch. 17 - The process by which many new species arise in a...Ch. 17 - A species may be at higher risk of extinction if...Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Review the material on the possibility of...Ch. 17 - A drug called colchicine prevents cell division...Ch. 17 - What are the two major types of reproductive...Ch. 17 - It is difficult to perform experiments that test...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- While there are many criteria to describe the difference between two species, the biological definition of a species is based on being part of?arrow_forwardDescribe limitations of the biological species concept.arrow_forwardThe biological species concept defines a species by its morphology. In other words all members of the same species look alike? True or false?arrow_forward
- What is the main rule used to define a species in biology?arrow_forwardDescribe the two methods that are used to identify similarity between species when creating phylogenetic trees.arrow_forwardThe second step of classification is using homologous traits to determine the relationships between organisms. Based on the traits you identified in Exercise 3, it should now be possible to group some of the objects together. Objects that share a derived trait are related to one another, and they should be grouped together. Objects that share multiple shared derived traits are closely related, and they should be subgroups within larger related groups.Describe the groups in which you would place these objects, starting with groups with the largest number of objects and ending with the group with the smallest number of objects.arrow_forward
- Provide at least one illustration of each of the following types of definition: a. Denotative b. Connotative c. Genus and Differentiaarrow_forwardThe biological species concept primarily focuses on which of the following criteria for defining a species? Interbreeding and reproductive isolation Phylogenetic relationships Ecological roles Morphological similaritiesarrow_forwardClassification systems summarize much information about organisms, although often a key trait allows us to immediately distinguish between two different ones. Most of us are very familiar with dogs and cats, which are common pets. What key traits can you think of that would alwaysdistinguish a dog from a cat?arrow_forward
- Should one line of evidence hold more weight than another when we discuss the classification of species? Or should all lines of evidence be weighed equally?arrow_forwardShould more weight should be given to genetic data or to information derived from comparative anatomy (phenotypes) in regard to taxonomic classification?arrow_forwardWhat are three biological ways in which diversity and variation arises in individuals of species? In other words, why do siblings not look exactly alike? Answer:arrow_forward
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