Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 38, Problem 1WIO
Summary Introduction
To determine:
The conclusions about the competition between the two species of paramecia and their relationship.
Concept introduction:
In this two species of paramecia are used when they are grown separately, each population was proportional to the amount of food but when both are grown on the same dish only one species survived.
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You place two species of bacteria in a 50%/50% ratio into a test tube with nutrients that favor the growth of both bacterial species. After two days the ratio is 80%/20%. Assuming that the bacteria do not attack each other, do you think this is an example of competition?
Which statement about the classic competition experiments involving two
Paramecium species is FALSE?
The experiment involved interspecific competition.
The experiment involved exploitation competition.
Each species, when grown alone, exhibited logistic growth.
When grown together, the species exhibited logistic growth, but each reached a
lower carrying capacity than when it was grown alone.
What are some conditions that might lead to a mutualistic organism becoming a predator/parasite. Select all that apply.
A. Mutualistic nitrogen fixation bacteria might reduce the competitive ability of their host plants in environments with high N availability, because of the energetic costs to the plants of supporting the bacteria
B. none of the above
C. Mutualistic nitrogen fixing bacteria can become parasites in soil with low nitrogen availability because of the energy costs to the plant of supporting the bacteria
D. A mutualist fish species that feeds on ectoparasites of another fish species, might switch to feeding/removing important host tissue or secretions when ectoparasite abundance is too low.
Chapter 38 Solutions
Biology: Concepts and Investigations
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 - Prob. 6MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Prob. 1MCCh. 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. 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 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PIT
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