Question 19 (2.5 points)SavedAccording to the Red Queen hypothesis, Question 19 options:the population density of a predator depends on the population density of its prey.natural selection should favor the most efficient foragers.prey must continually evolve means of avoiding capture to avoid extinction.most predators consume a varied diet in order to meet their nutritional requirements.
Question 20 (2.5 points)SavedAs predators feed on prey, prey abundances decrease over time. This is predicted to result in a(n.: Question 21 (2.5 points)SavedA diffuse species interaction infers that the effects of: Question 22 (2.5 points)SavedThe greater the number of links in a food chain, the higher the:
Question 23 (2.5 points)SavedWhen apparent competition occurs, the: Question 23 options:populations of predator and prey species are smaller.population of the predator species is larger and the populations of the prey species are smaller.population of the predator species is smaller and the populations of the prey species are larger.populations of predator and prey species are larger. Question 24 (2.5 points)SavedWhich of the following is considered a guild?
Question 25 (2.5 points)SavedChanges in community composition and structure over time are called: Question 26 (2.5 points)SavedWhat is the resource-ratio hypothesis? Question 27 (2.5 points)
When an ecologist compares the diversity of different communities by counting the number of species within each community, the measure of diversity being used is called: Question 27 options:species evenness.species diversity.species richness.relative abundance.
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- Fall '14
- Biological interaction, Huffaker