Which of the following is likely a reason why evolutionary radiation would occur on islands? A) there are many more species on islands B) islands tend to have more favourable habitats than continents because they are moderated by the ocean C) islands may have fewer animal and plant groups and thus provide more ecological opportunities D) organisms can disperse easily across oceans E) islands often have more diverse habitats than continents

Which of the following is likely a reason why evolutionary radiation would occur on islands? A) there are many more species on islands B) islands tend to have more favourable habitats than continents because they are moderated by the ocean C) islands may have fewer animal and plant groups and thus provide more ecological opportunities D) organisms can disperse easily across oceans E) islands often have more diverse habitats than continents

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 4RQ: What is the difference between micro- and macroevolution? a. Microevolution describes the evolution...

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Adaptive radiations can be a direct consequence of three of the following four factors. Select the factor that is NOT a direct consequence of adaptive radiation. Select one: a. Genetic drift b. Vacant ecological niches (niches are environment "space" where a particular organism has resources required to survive and reproduce) c. New evolutionary innovations d. Colonization of a new region that contains suitable habitat and few competitor species
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Which of the following terms most speciﬁcally describes what occurs when a group of organisms expands to take on new ecological roles, forming new species and higher taxonomic groups in the process? (a) speciation (b) mass extinction (c) evolution (d) adaptive radiation
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Because mass extinction is a natural process that may facilitate evolution during the period of thousands to millions of years that follow it, should humans be concerned about the current mass extinction we are causing? Why or why not?
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Is the rate of evolution, based on the supply of genetic variation and the strength of natural selection, fast enough to account for the emergence of major new kinds of organisms, such as birds and whales?
which statement about macroevolution is true? a. The history of life on Earth follows a general trend toward increasing diversity marked by rare mass extinction events. b. The theory of punctuated equilibrium proposes that most evolutionary changes occur over long periods of time. c. The theory of gradualism proposes that major evolutionary changes happen relatively rapidly and are then followed by long periods of little change. d. All scientific understandings are complete, as scientific investigations have now filled in all remaining gaps.
What is the role of mass extinctions to evolution?