WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 18, Problem 3MC
Summary Introduction
Introduction:
Madagascar is the fourth largest island in the world, and has an unusually rich species diversity.
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Conservation hotspots are best described as
a. areas with large numbers of endemic species, in many of which species are disappearing rapidly.
b. areas where people are particularly active supporters of biological diversity.
c. islands that are experiencing high rates of extinction.
d. areas where native species are being replaced with introduced species.
A species that has an immediate threat to extinction is said to be:a. threatened. c. alien.b. endangered. d. extinct.
H5N1 and SARS are examples ofa. extinct species.b. forms of greenhouse gases.c. endangered habitats.d. emerging diseases.
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WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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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
- Which of these is a true statement?a. Habitat loss is the most frequent cause of extinctions today.b. Exotic species are often introduced into ecosystems by accidental transport.c. Climate change may cause many extinctions but also expands the ranges of other species.d. Overexploitation of fisheries could lead to a complete collapse of the fishing industry.e. All of these statements are true.arrow_forwardWhich of the following is NOT one of the main causes of today’sbiodiversity crisis?a. Natural disasters, such as earthquakesb. Habitat destruction and degradationc. Overexploitationd. Introduction of nonnative speciesarrow_forwardThe Endangered Species Act (ESA) of 1973 has helped to slow the destruction of habitat and the loss of species in the United States. There are now many success stories of animals/plants that were on the edge of extinction and now are returning. Even with the success stories there are many who criticize ESA. I want you to give at least 2 examples (with explanation) that show the success and need for The Endangered Species Act. And give 2 reasons why ESA is still criticized after all these years.arrow_forward
- Why does the aquarium trade contribute to the introduction of nonnative species? a. Exotic species can escape or be released into local ecosystems. b. Aquarium owners do not always understand how ecosystems interact. c. Nonnative fish are shipped worldwide for aquariums. d. All of the above Please select the best answer from the choices provided A B C Darrow_forwardEcological dominants are a. the most numerous or make up the most biomass within a community. b. are species that may not be the most numerous within a community, but whose role is so significant that its absence would bring about considerable change. c. species that are introduced into an area where they do not naturally occur. d. the most important species on the planet.arrow_forwardAssuming all other factors are equal, which statement about the success of core natural areas as a conservation measure is false? OA. Areas with compact shapes are superior to areas with less compact shapes. B. One large reserve is superior to a few small reserves with the same total area. C. Several reserves far apart are superior to the same number of reserves close together. O D. Reserves connected by habitat corridors are superior to unconnected reserves. Areas encompassing a range of vegetation types are superior to those with a uniform composition. E.arrow_forward
- What is the importance of endemic hotspots to biodiversity conservation? A. Endemic hotspots contain many species found nowhere else, so the conservation of a small amount of area will protect many species. B. Endemic hotspots have the highest species diversity, so their conservation will protect the most species. C. Endemic hotspots are those that contain species vital to human existence, ssuch as medicinal species, and therefore humans rely on these areas the most. D. Endemic hotspots are where speciation rates are thegreatest, so the conservation of those areas will likely lead to the formation of many species in the future. E. Endemic hotspots have very low ecosystem stability, therefore require more protections to avoid extiction.arrow_forwardBiodiversity hotspotsa. have few populations because the temperature is too hot.b. contain about 20% of Earth’s species even though their area is small.c. are always found in tropical rain forests and coral reefs.d. are sources of species for the ecosystems of the world.e. All except a are correct.arrow_forwardInmost ecological communities, we find:a.more rare species than moderately common or very common ones.b.more very common species than moderately common or rare ones.c. norare species—apparently “rare” species are artifacts of incompletesampling.d.roughly equal proportions of rare, moderately common, and very commonspecies.e. more moderately common species than rare orvery common ones.arrow_forward
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