BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
2020th Edition
ISBN: 9780135686553
Author: Audesirk
Publisher: PEARSON
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Chapter 31, Problem 1FTB
Summary Introduction
To review:
The given blank space in the statement, “three levels of biodiversity are___________, ___________, and ___________. If the population of a species becomes too small, it is likely to have lost much of its _____________ diversity.”
Introduction:
The term ‘biodiversity’ refers to the number of different varieties of species living on the earth. It includes plants, animals, microorganisms, as well as the entire ecosystem such as forests, national park, tiger reserve, bird sanctuary, and deserts. It is necessary to conserve the earth’s natural diversity because it is the basis for maintenance of the fauna and flora of ecosystem.
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Chapter 31 Solutions
BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
Ch. 31 - A factor that increases humanity's ecological...Ch. 31 - Prob. 2MCCh. 31 - Prob. 3MCCh. 31 - Prob. 4MCCh. 31 - Which of the following is not true of a population...Ch. 31 - Prob. 1FTBCh. 31 -
2. Products or processes by which functioning...Ch. 31 - Many of the benefits that humans derive from...Ch. 31 - Prob. 4FTBCh. 31 -
5. The smallest population of a species that is...
Ch. 31 -
6. A Native American saying tells us that “We do...Ch. 31 - Prob. 1RQCh. 31 - What is ecological economics? Why is it important?Ch. 31 - Prob. 3RQCh. 31 -
4. What five specific threats to biodiversity are...Ch. 31 - Why are efforts to protect monarch butterflies a...Ch. 31 - List some reasons that the ecological footprints...Ch. 31 -
2. Search for and describe some examples of...
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- How is the Biodiversity Index calculated? Total number of individuals x number of species Total number of individuals - number of species Number of species divided by total number of individuals Number of species + total number of individualsarrow_forwardA conservation organization has hired you to lead efforts to reduce the loss of biodiversity in a tropical country. Which of the following problems would you focus on first and why: habitat destruction and fragmentation, hunting and fishing activity, harvesting of wild species for commercial sale, or introduction of exotic organisms?arrow_forwardWhat term describes the top limit of a population of organisms in an area? biotic capacity carrying capacity population limit limiting factorarrow_forward
- Which one of the following statements is FALSE? Beta diversity is low when two ecosystems share the similar species and respective abundance. An intelligent meander records date, time, location and a list of species. Beta diversity or differentiation diversity compares alpha diversity among several communities. Species richness is the total species abundance in an ecosystem. Inventory diversity can be defined by alpha diversity, which is the number of species in a local forest stand.arrow_forwardWhich community would be expected to have the highest species richness? Group of answer choices A community that inhabits a small geographic area near the poles. A community that inhabits a small geographic area near the equator. A community that inhabits a large geographic area area near the poles. A community that inhabits a large geographic area near the equator.arrow_forwardWhy can reduction in species biodiversity be a problem for an ecosystem, and what are two things that humans can do to preserve or increase species biodiversity?arrow_forward
- Which of the following is one of the biggest threats to biodiversity? A. Invasive species B. Land protection C. Ecological conservation D. Habitat restorationarrow_forwardWhich of the following is true about a community's species diversity? If a community has species richness, it automatically means it also has species diversity. A community can only have either species richness or species diversity, but not both A community can have either species richness or species diversity, or both. None of the abovearrow_forwardWhen population of species begins declining rapidly, the species is said to be?arrow_forward
- Which one of the following is the number of individuals per unit area? A. distribution B. growth rate C. density D. geographic rangearrow_forwardIn a given habitat we have 20 plant species and 20 animal species should we call this as 'diversity'or'biodiversity' ?arrow_forwardThe green world hypothesis was tested by Robert Paine and he found that when you removed the top predator, star fish, from the intertidal zone Group of answer choices: • None of the answers are correct • species diversity stayed the same • species diversity increased • species diversity decreasedarrow_forward
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