Exam 4: Biodiversity and Evolution
Exam 1: Environmental Problems, Their Causes, and Sustainability100 Questions
Exam 2: Science, Matter, Energy, and Systems102 Questions
Exam 3: Ecosystems: What Are They and How Do They Work110 Questions
Exam 4: Biodiversity and Evolution104 Questions
Exam 5: Biodiversity, Species Interactions, and Population Control100 Questions
Exam 6: The Human Population and Its Impact111 Questions
Exam 7: Climate and Biodiversity100 Questions
Exam 8: Aquatic Biodiversity109 Questions
Exam 9: Sustaining Biodiversity: the Species Approach100 Questions
Exam 10: Sustaining Terrestrial Biodiversity: the Ecosystem Approach108 Questions
Exam 11: Sustaining Aquatic Biodiversity122 Questions
Exam 12: Food, Soil, and Pest Management118 Questions
Exam 13: Water Resources115 Questions
Exam 14: Geology and Nonrenewable Mineral Resources115 Questions
Exam 15: Nonrenewable Energy102 Questions
Exam 16: Energy Efficiency and Renewable Energy103 Questions
Exam 17: Environmental Hazards and Human Health103 Questions
Exam 18: Air Pollution112 Questions
Exam 19: Climate Disruption and Ozone Depletion111 Questions
Exam 20: Water Pollution114 Questions
Exam 21: Solid and Hazardous Waste108 Questions
Exam 22: Cities and Sustainability99 Questions
Exam 23: Economics, Environment, and Sustainability104 Questions
Exam 24: Politics, Environment, and Sustainability90 Questions
Exam 25: Environmental Worldviews, Ethics, and Sustainability55 Questions
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Use the Figure above, which represents the niche of the Panda and the raccoon, to answer the following question(s).
-Which graph (A or B) is representative of a generalist species?
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(Short Answer)
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Correct Answer:
B
Mass extinctions, with 25─95% of species going extinct, have occurred how many times in the history of the earth?
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(Multiple Choice)
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Correct Answer:
C
-After looking at the figure above, explain how the movement of the continents can help explain why some species have the geographic distribution that is observed today.
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(Essay)
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Correct Answer:
Species that arose or were present at the time of the unified continents would have been able to expand broadly.As the continents began to move apart those species would have become isolated from one another, providing for the fragmented distribution that is observed in a group of species such as the marsupials.Their distribution shows larger numbers of species in southern South America and Australia, continents that are currently far apart.
Even if a beneficial heritable trait is present in a population, the population's ability to adapt may be limited by its ____________________.
(Short Answer)
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Briefly explain the interaction between mutations, reproductive success, and adaptation or adaptive traits.
(Essay)
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Amphibians are sensitive to changes in the environment and their decline suggests a decline in the environmental health of the earth.
(True/False)
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A species in an ecosystem that shapes communities by creating and enhancing habitats in ways that benefit other species is called
(Multiple Choice)
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Scientists have used genetic engineering to do all of the following, except
(Multiple Choice)
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All of the following would be true of a specialist species, except
(Multiple Choice)
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____________________ diversity is the most obvious component of biodiversity.
(Short Answer)
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Humans are playing a decreasing role in the process of extinction.
(True/False)
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According to an IUCN 2009 study __________ percent of the world's open ocean shark species are threatened with extinction.
(Short Answer)
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A(n) ____________________ is a significant increase in extinction rates above the background level.
(Short Answer)
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New species form when one species splits into two or more different species, a process called _______________.
(Short Answer)
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Species that migrate into, or that are deliberately or accidentally introduced into, an ecosystem are called ____________________.
(Short Answer)
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If the percentage of atmospheric oxygen increased only by about 4% the atmosphere would likely become a giant fireball.
(True/False)
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From a scientific point of view, which of the following is true?
(Multiple Choice)
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Among his many accomplishments, Edward O.Wilson is working on Harvard University's ____________________, an online database of the earth's known and name species.
(Short Answer)
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New species arise as the result of two processes, geographic and reproductive isolation.Explain how these processes work together to produce new species.
(Essay)
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Use the Figure above, which represents the niche of the Panda and the raccoon, to answer the following question(s).
-What advantage does the characteristic indicated by letter D bestow upon the animal who occupies this niche as opposed to the animal occupying the other niche?
(Essay)
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