herbivores at the bottom, carnivores in the middle, and primary producers at the top. carnivores at the bottom, herbivores in the middle, and primary producers at the top. primary producers at the bottom, carnivores in the middle, and herbivores at the top. Question 32 2.5 / 2.5 points
Which of the following is an example of a fundamental niche? Question options: A mouse feeding on only small seeds in the presence of a competitor An amphibian laying eggs in all possible habitats A bird nesting on top of a tree in the presence of predators A lizard feeding on insects only at dawn when snakes are present Question 33 2.5 / 2.5 points According to the theory of island biogeography, the islands with the most species will be: Question options: small and close to the mainland. small and far from the mainland. large and close to the mainland. large and far from the mainland. Question 34 2.5 / 2.5 points Beavers maintain a landscape through: Question options: the massive defoliation of shrubs. feeding on roots of graminoid plants. feeding on aspen, willow, and birch trees. dispersing seeds of mesquite. Question 35 2.5 / 2.5 points Which of the following is considered a guild? Question options: Mammals Coniferous forest Top predators Insect-feeding birds Question 36 0 / 2.5 points Which of the following communities can be expected to have the highest species richness? Question options: Community 1 sustains 34 species of high evenness. Community 2 sustains 36 species with very low evenness. Community 3 sustains 35 species of high evenness. Community 4 sustains 33 species of low evenness.
Question 37 2.5 / 2.5 points A diffuse species interaction infers that the effects of: Question options: predation by one species on another is strong. competition by one species on another is strong. competition by one species on another is weak. predation is stronger than those of competition. Question 38 2.5 / 2.5 points Which statement BEST describes a keystone species? Question options: A rare or uncommon species that has a strong effect on its community An abundant species that may or may not affect other species A species that takes up a great deal of space in a community A common species that has a strong effect on its community Question 39 0 / 2.5 points When we observe a corridor wide enough to contain an interior habitat, we are looking at: Question options: functional connectivity. a patch. a strip corridor. a filter effect. Question 40 2.5 / 2.5 points When apparent competition occurs, the: Question 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. Attempt Score: 85 / 100 - 85 %
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- Spring '19