BIOLOGY CONNECT ACCESS CARD 1-SEMESTER
12th Edition
ISBN: 9781264019090
Author: Raven
Publisher: MCG/CREATE
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Question
Chapter 56, Problem 7IQ
(a)
Summary Introduction
Toanalyze: The reason for the greatest species richness at the intermediate level of productivity.
Introduction: The term species richness can be defined as several different species found in an area.
(b)
Summary Introduction
Toanalyze: The reason for the highest number of species found in structurally complex areas.
Introduction: The number of species found on the earth is known as biodiversity. The different type of species needsa different environment for survival.
(c)
Summary Introduction
Toanalyze: The reason for the presence of more species in the area with less variation in temperature.
Introduction: The species richness can be calculated by the number of species found per unit area.
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Chapter 56 Solutions
BIOLOGY CONNECT ACCESS CARD 1-SEMESTER
Ch. 56.1 - Prob. 1LOCh. 56.1 - Prob. 2LOCh. 56.1 - Prob. 3LOCh. 56.2 - Describe the different trophic levels.Ch. 56.2 - Distinguish between energy and heat.Ch. 56.2 - Explain how energy moves through trophic levels.Ch. 56.3 - Explain the meaning of trophic cascade.Ch. 56.3 - Prob. 2LOCh. 56.4 - Define ecosystem stability.Ch. 56.4 - Prob. 2LO
Ch. 56.4 - Prob. 3LOCh. 56.5 - Prob. 1LOCh. 56.5 - Prob. 2LOCh. 56 - Prob. 1DACh. 56 - Prob. 2DACh. 56 - Prob. 3DACh. 56 - Prob. 4DACh. 56 - Prob. 1IQCh. 56 - Prob. 2IQCh. 56 - Prob. 3IQCh. 56 - Prob. 4IQCh. 56 - Prob. 5IQCh. 56 - Prob. 6IQCh. 56 - Prob. 7IQCh. 56 - Which of the statements about groundwater is NOT...Ch. 56 - Photosynthetic organisms a. fix carbon dioxide. b....Ch. 56 - Prob. 3UCh. 56 - Nitrogen is often a limiting nutrient in many...Ch. 56 - Prob. 5UCh. 56 - Prob. 6UCh. 56 - Inverted ecological pyramids of real systems...Ch. 56 - Prob. 8UCh. 56 - Prob. 9UCh. 56 - The equilibrium model of island biogeography...Ch. 56 - Based on results from studies at Hubbard Brook...Ch. 56 - According to the trophic cascade hypothesis, the...Ch. 56 - At Cedar Creek Natural History Area, experimental...Ch. 56 - Given that ectotherms do not utilize a large...Ch. 56 - Given that, in general, energy input is greatest...Ch. 56 - Prob. 3SCh. 56 - Explain several detailed ways in which increasing...
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- What trophic level contains the greatest biomass in most ecosystems? Explain why this occurs.arrow_forwardOrganisms at the first trophic level ________. a. capture energy from a nonliving source b. are eaten by organisms at lower trophic levels c. are shown at the top of an energy pyramid d. are consumersarrow_forwardDescribe what happens to an ecosystem when a keystone species is removed.arrow_forward
- What would happen to an ecosystem if (a) all of its decomposers and detritus feeders were eliminated, (b) all of its producers were eliminated, and (c) all of its insects were eliminated? Could an ecosystem function with only producers and decomposers and no consumers? Explain.arrow_forwardWhat would happen to an ecosystem if all its decomposers and detritus feeders were eliminated or all its producers were eliminated?arrow_forwardWhat would happen to an ecosystem if (a) all its decomposers and detritus feeders were eliminated, (b) all of its producers were eliminated, or (c) all of its insects were eliminated? Could an ecosystem exist with producers and decomposers but no consumers? Explain.arrow_forward
- It is projected that we will lose what percentage of the present species richness by middle of the centuryarrow_forwardIn what ways might the age and area of a region affect its species richness?arrow_forwardWhich of the following statements best represents the productivityhypothesis regarding species richness?a. The larger the area, the greater the number of species that will befound there.b. Temperate regions have a lower species richness due to the lack oftime available for migration after the last Ice Age.c. The number of species in a particular community is directly relatedto the amount of available energy.d. As invertebrate productivity increases, species richness will increase.e. Species richness is not related to primary productivity.arrow_forward
- If the human population were to stabilize tomorrow and never reach 8 billion people, would that solve all our environmental problems? Why or why not? What conditions might get better, and what challenges might remain?arrow_forwardWhich of the following would be most effective in slowing the loss of biodiversity?arrow_forwardWhich trophic level in an aquatic ecosystem would contain the greatest amount of usable energy? Primary consumers located 150 meters below sea level. Primary producers located 80 meters below sea level. Primary producers located 45 meters below sea level. Primary consumers located 40 meters below sea level.arrow_forward
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