BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
4th Edition
ISBN: 9781260505498
Author: Hoefnagels
Publisher: MCG
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Chapter 38, Problem 1PIT
1. Review the definitions of ecology, populations, communities, and ecosystems using the Survey the landscape figure in the chapter introduction and the Pull It Together figure. Then, classify each of the following as a question relating to populations, communities, or ecosystems:
a. How do gophers and moles compete for
b. How do monkeys establish dominance within a group?
c. How does pollution affect crop plants?
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7. Behavioral ecology can best be described as ________.
A.
responses by organisms that helps others (e.g., increase their fitness)
B.
responses by organisms that increase food intake
C.
responses by organisms that adversely affect others (e.g., competition)
D.
responses by organisms that contribute to survivorship and reproduction
E.
responses by organisms that maximize outcrossing
8
Analyze if the following pairs of statements are correct.
Choose: A, if both statements are correct; B, if only the first statement is correct; C, if only the second statement is correct; or D, if both statements are incorrect.
2a. Population density refers to the number of individuals within a designated area.
2b. Richness pertains to the number of species present in a specific location.
1. On the savannah of African exist two animals, the African Wild Dogs (Lycaon pictus) and the Spotted Hyenas (Crocuta crocuta). Both of these animals occupy a very similar niche in their community – a social carnivore, which hunts in packs. However, when their niche does completely overlap the Hyena will win the fight. Use this information to answer the following questions.
a) If these two animals were to occupy the same habitat, knowing what you know about these populations, what do you think the outcome of these two populations would be?
b) The African Wild Dog hunts at twilight, while the Spotted Hyenas hunt at night. This separation of niches allows for what ecological process to happen? Why is it important that this process happens?
c) The population of African Wild Dogs is much smaller, and very isolated from one another. If you were trying to prevent this animal from going extinct – what would you focus your resources on conservation wise? (There are a number of answers for…
Chapter 38 Solutions
BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
Ch. 38.1 - Distinguish among communities, ecosystems, and...Ch. 38.1 - Prob. 2MCCh. 38.1 - Distinguish between habitat and niche.Ch. 38.1 - Prob. 4MCCh. 38.1 - Prob. 5MCCh. 38.1 - Prob. 6MCCh. 38.1 - Prob. 7MCCh. 38.2 - Prob. 1MCCh. 38.2 - Prob. 2MCCh. 38.2 - Prob. 3MC
Ch. 38.2 - Prob. 4MCCh. 38.3 - Identify the trophic levels of a food chain.Ch. 38.3 - Prob. 2MCCh. 38.3 - Prob. 3MCCh. 38.3 - Prob. 4MCCh. 38.3 - Prob. 5MCCh. 38.3 - Draw an energy pyramid for an ecosystem with three...Ch. 38.3 - Prob. 7MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Use figure 38.25 to describe the relationships...Ch. 38.5 - Prob. 2MCCh. 38 - Prob. 1MCQCh. 38 - Cyanobacteria are photosynthetic bacteria that...Ch. 38 - Prob. 3MCQCh. 38 - Prob. 4MCQCh. 38 - A large tree falls over in an old-growth forest,...Ch. 38 - Prob. 6MCQCh. 38 - In a prairie, which trophic level should have the...Ch. 38 - Prob. 8MCQCh. 38 - Prob. 9MCQCh. 38 - Prob. 10MCQCh. 38 - Prob. 1WIOCh. 38 - Prob. 2WIOCh. 38 - Prob. 3WIOCh. 38 - Prob. 4WIOCh. 38 - Prob. 5WIOCh. 38 - Prob. 6WIOCh. 38 - Prob. 7WIOCh. 38 - Prob. 8WIOCh. 38 - Prob. 9WIOCh. 38 - Officials in the northeastern United States arc...Ch. 38 - Prob. 11WIOCh. 38 - Prob. 12WIOCh. 38 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PITCh. 38 - Prob. 3PIT
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