WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 18, Problem 2MC
Summary Introduction
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Biodiversity hotspots are reservoirs of biodiversity which are under threat.
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Chapter 18 Solutions
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
- The population size of a species capable of being supported by the environment is called its ________. a. limit b. carrying capacity c. biotic potential d. logistic growth patternarrow_forwardThe total number of species present in a community is called the a. species evenness. b. species richness. c. species-area relationship. d. population.arrow_forwardConservation 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.arrow_forward
- The Shannon Index, H', for community #1 is 1.7; for community #2 it is 1.5. We can conclude that community #1 has a higher than community #2. a. all of these b. species diversity c. species richness d. species evennessarrow_forwardCarrying capacity is defined as a species’ average population size in an environment. Which of the following resulted to exceeding carrying capacity in a particular environment? a. increasing birthrates, decreasing deathrates, increasing immigration and no emigration takes place b. increasing birthrates, decreasing deathrates, decreasing immigration and no emigration takes place c. increasing birthrates, decreasing deathrates, decreasing immigration and increasing emigration d. decreasing birthrates, increasing deathrates, increasing immigration and increasing emigrationarrow_forwardAt any point in time, a number of environmental objectives must be met with a limited amount of economic resources. This means that once an environmental problem is identified, they have to be prioritized. In general, this is done using scientific valuation of the relative risk to human health and the ecology of a given environmental hazard - a procedure known as: A. Biodiversity B. Public Goods C. Risk Assessment D. Profit maximizationarrow_forward
- Habitats with moderate levels of disturbance have higher species diversity. Question 2 options: A) True B) Falsearrow_forwardDetermine if each statement is correct or incorrect: 1. Ecosystems with fewer numbers of species tend to be less stable. 2. Increasing numbers of species lead to more redundancy which is bad for the ecosystem. 3. More species mean more niche separation. 4. Species with a low resistance will also have low resilience. 5. Disturbances to ecosystems can be both naturally occurring and human caused. 6. Stresses to ecosystems are useful for removing weaker species and ensuring the strongest survive. 7. Bringing non-native species into an area to increase biodiversity makes the ecosystem more stable.arrow_forwardThe relative abundance of any one species within a community of many species is known as a. species evenness. b. species richness. c. specialization. d. population.arrow_forward
- Habitat fragmentation results from human activities that change large blocks of landscape, leading to many negative effects on species and ecosystems. Which of the following is not one of the possible consequences of fragmentation? A. reduction of available habitat O B. increasing degradation of habitat patches C. increasing wind speeds and temperatures at patch edges D. spatial isolation of patches E. increase in top predators present in patchesarrow_forwardBuffer zones in a conservation program are: O a. Areas in which the original habitat has been replanted. O b. Areas from which humans are excluded. O c. Areas in which there is no increase in farm land. O d. Areas in which there is no hunting or logging. Areas in which there are no types of industries. O e.arrow_forwardHabitat fragmentation can reduce biodiversity by a. introducing more native species into a habitat b. sterilizing for pollution control C. decreasing human use of natural resources d. eliminating vast tracts of forests e. withdrawing an essential resource from native speciesarrow_forward
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