BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 14, Problem 6WIO
Summary Introduction
To determine:
The information needed by an individual to determine the background extinction rate and current extinction rate.
Introduction:
An evolutive process that results in the disappearance of a species or a population is called extinction. An extinct species loses its entire genetic heritage. Extinction of species may also occur due to volcanic eruption or due to the impact of an asteroid.
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Chapter 14 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 14.1 - How are macroevolution and microevolution related?Ch. 14.1 - Prob. 2MCCh. 14.1 - What are some of the challenges in defining...Ch. 14.2 - Prob. 1MCCh. 14.2 - Write a real or fictitious example other than...Ch. 14.3 - Prob. 1MCCh. 14.3 - Prob. 2MCCh. 14.3 - Prob. 3MCCh. 14.4 - Prob. 1MCCh. 14.4 - Prob. 2MC
Ch. 14.5 - Prob. 1MCCh. 14.5 - Prob. 2MCCh. 14.5 - Prob. 3MCCh. 14.6 - Describe the taxonomic hierarchy.Ch. 14.6 - What are the strengths of a cladistics approach...Ch. 14.6 - Distinguish between ancestral and derived...Ch. 14 - Macroevolution is distinct from microevolution in...Ch. 14 - The biological species concept defines species...Ch. 14 - A mule is the offspring of a male donkey and a...Ch. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - Prob. 7MCQCh. 14 - Prob. 8MCQCh. 14 - Prob. 9MCQCh. 14 - Prob. 10MCQCh. 14 - How has the meaning of the term species changed...Ch. 14 - What type of reproductive barrier applies to each...Ch. 14 - Prob. 3WIOCh. 14 - Polyploidy is a common mechanism of speciation in...Ch. 14 - How does natural selection predict a gradualistic...Ch. 14 - Prob. 6WIOCh. 14 - Examine the cladogram in figure 14.17 and answer...Ch. 14 - Prob. 8WIOCh. 14 - Prob. 9WIOCh. 14 - Prob. 1SLCh. 14 - Prob. 1PITCh. 14 - Prob. 2PITCh. 14 - Prob. 3PIT
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- Are we the culprits of the sixth extinction? Cite two examples to justify your stand.arrow_forwardIncreases in species diversity arise because of A)increases in the rate of speciation. B)decreases in the rate of extinction. C)higher rates of speciation than extinction. D)All of the above The rates of extinction since the origin of life have followed which pattern? A)Gradual decrease B)Gradual increase C)No change D)Several episodes of mass extinctions, with much lower rates of fluctuating extinctions in between Which of the following statements about the outcome of the evolution of a new species through hybridization is false? A)The new species is always an intermediate of the two parent species. B)The new species may have traits that allow it to inhabit environments different from both parental species. C)The new species may have greater genetic diversity and therefore greater trait diversity than the parental species. D)All of the above How can ecological processes influence the evolution of a population? A)Ecological…arrow_forwardWhat the difference between background extinction and biological extinction?arrow_forward
- What is the “sixth mass extinction event”?arrow_forwardWith an extinction rate of 100 E/MSY and an estimated 10 million species, how many extinctions are expected to occur in a century?arrow_forwardAnswer these questions A) State other factors that cause extinction B) Why organisms found on islands are more vulnerable to extinction than other organisms? C) How extinction can be prevented?arrow_forward
- What would the extinction rate be for a 30 square mile island that is 1000 miles from the mainland and has 150 species on it. Assume the extinction probability for each individual species is 0.8 and the power scaling function is 0.25. Round your answer to two decimals, include a 0 before the decimal if necessary, and do not include units (i.e. O.XX)arrow_forwardIf 99% of the species that ever existed are now extinct, why is there such concern over the extinction rates over the last several centuries?arrow_forwardWhat are the five mass extinctions of the past and the current theory of the sixth mass extinction? For each extinctions, what caused the extinction and how was ecosystem stability impacted? Was there any speciation that occurred afterward?arrow_forward
- According to Figure 2 above, how many extinction events contributed to the end-Ordovician mass extinction and when did they occur?arrow_forwardAre humans the culprits of the sixth extinction? Cite two examples to justify your stand.arrow_forwardDistinguish between biological extinction and mass extinction. Does every species have the right to survive without human interference, regardless of whether they serve a useful purpose to humans? Explain?arrow_forward
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