BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 14.5, Problem 2MC
Summary Introduction
To determine:
The difference between mass extinction and the background extinction rate.
Introduction:
Extinction refers to the death or termination of the last existing member of a species. In scientific certainty, a species is said to be extinct if there is no individual left to reproduce new generation.
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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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- An extinction vortex describes a) changes in a population’s gene pool that lead to a loss in fitness across time. b) a species ability to adapt to changes in their environment. c) the continuous series of extinctions caused by competition between species. d) a population that has a reduction in fitness because it cannot escape a Hardy-Weinberg Equilibrium.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_forwardChoose one anthropogenic causes of extinction and provide possible solution/s on how to prevent it.arrow_forward
- Define biodiversity. What is most likely the impact of isolation due to crustal plate movement?arrow_forwardExtinction Match the following items. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. Sudden, dramatic loss of biodiversity mass extinction Routine loss of biodiversity; about 1 per million species years background extinctionarrow_forwardName the process of complete disappearance of a living species, races or group from earth surface.arrow_forward
- With an extinction rate of 100 E/MSY and an estimated 10 million species, how many extinctions are expected to occur in a century?arrow_forwardPaleomagnetic reversals cause mass extinctions when they occur. Group of answer choices True Falsearrow_forwardTo describe: The reason behind the history's largest waves of extinction.arrow_forward
- do you think that loss of species (species extinctions) are something that humans should be concerned about? Support your answer with at least 2 supporting details.arrow_forwardBased on the current species discovery rates, scientists estimate that: Most species have already been identified and described. Most species will be identified and described by the end of the century. It will take many centuries to identify and describe all the species on Earth.arrow_forwardWhy are extinction and origination rates correlated?arrow_forward
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