Human Biology
16th Edition
ISBN: 9781260482799
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 24.2, Problem 2CYP
Summary Introduction
To describe:
The trophic level.
Introduction:
Energy is needed by every organism to sustain life. Plants trap the solar energy converting it into carbohydrate which is then eaten and tapped by other organisms like cows, sheep. Lion and other meat-eating organisms, feed on these animals and so on the link or connection continues. Thus, the energy moves in a path which is known as the food chain. However, an ecosystem's availability or preferences may be more complex leading to an interlocking pathway known as a food web.
The food web is used to explain species interaction by categorizing different organisms into specific feeding groups. These feeding groups are referred to as trophic levels.
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Chapter 24 Solutions
Human Biology
Ch. 24.1 - Prob. 1LOCh. 24.1 - Prob. 2LOCh. 24.1 - Prob. 3LOCh. 24.1 - Why can the biosphere be considered a giant...Ch. 24.1 - Prob. 2CYPCh. 24.1 - Prob. 3CYPCh. 24.1 - Prob. 4CYPCh. 24.2 - 1. Recognize the differences between a grazing...Ch. 24.2 - Explain the energy flow among populations through...Ch. 24.2 - Prob. 1BTS
Ch. 24.2 - What is the easiest way to prevent the...Ch. 24.2 - Prob. 3BTSCh. 24.2 - Prob. 4BTSCh. 24.2 - Prob. 1CYPCh. 24.2 - Prob. 2CYPCh. 24.2 - Prob. 3CYPCh. 24.3 - Prob. 1LOCh. 24.3 - Prob. 2LOCh. 24.3 - 3. Identify how human activities can alter each of...Ch. 24.3 - Prob. 1BTBCh. 24.3 - Prob. 2BTBCh. 24.3 - Prob. 1BTSCh. 24.3 - Prob. 2BTSCh. 24.3 - Prob. 1CYPCh. 24.3 - Are the carbon, water, nitrogen, and phosphorus...Ch. 24.3 - Discuss the roles of bacteria in the nitrogen...Ch. 24.3 - Prob. 4CYPCh. 24.3 - Prob. 5CYPCh. 24 - Prob. 1ACh. 24 - Prob. 2ACh. 24 - Prob. 3ACh. 24 - Prob. 4ACh. 24 - Prob. 5ACh. 24 - Prob. 6ACh. 24 - Prob. 7ACh. 24 - Prob. 8ACh. 24 - Prob. 9ACh. 24 - The atmosphere acts as a reservoir. Key: water...Ch. 24 - Prob. 11ACh. 24 - Prob. 12ACh. 24 - Prob. 1TCCh. 24 - Prob. 2TCCh. 24 - Prob. 3TC
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- Understand why food chains and webs can rarely have more than four trophic levels.arrow_forwardThe Law of 10 determines all the following characteristics except one. Which one characteristic does the Law of 10 NOT determine? Group of answer choices The abundance of individuals at various trophic levels The amount of energy stored in the combined biomass of various trophic levels The combined mass of individuals at various trophic levels The length of food chains The number of species at various trophic levelsarrow_forwardMass of living matter at a trophic level in an area at any time is called as what?arrow_forward
- Which 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_forwardWhat is a food web? How does the amount of primary productivity influence the number of trophic levels in a food web as well as the number of species at the top? Explain the difference between top down and bottom up control in food webs.arrow_forwardWhen hunting disrupts the balance in the food chain by removing all owls, there will be no predators on snakes, leading to their increase in numbers. Considering the scenario where the number of lost owls (4) is replaced by snakes, compute for energy units following in completing the table below. Trophic Levels No. Individuals in Each Trophic Level No. of Units Received from Trophic Level Above No. Units Used / Individual (Resp) No. Units Used in Trophic Level No. Units Remaining & Passed on to Next Trophic Level Mean No. Units Available per Individual in Trophic Level SUN +E = 6 1) Plants 30 2 2) Grasshopper 19 2 3) Frog 12 2 4) Snake 8 + 4 = 12 2 5) Owl 0 2arrow_forward
- Write the trophic level(s) for each of the following organisms: A. Amoeba B. Predatory nematodes C. Raccoon D. Dead grass stems, leaves or pine needles.arrow_forwardIn a terrestrial ecosystem such as forest, maximum energy is in which trophic level?arrow_forwardThe following is NOT true about trophic levels Animals capable of feeding at many trophic levels will be able to survive if portions of their food supply are decreased or eliminated Secondary consumers belong to the third trophic level Primary consumers belong to the first trophic level Each stage through which energy travels is called a trophic levelarrow_forward
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