5. Which of the following is a resource? a. Oxygen being depleted by zooplankton in the ocean b. Oxygen breathed by leopards in the jungle c. Water in which dolphins are swimming d. Both a and b 6. Two species of grasshoppers live in the same area. They both feed on plants, but the presence of one species does not affect either the survival or the reproduction of the other. What type of competition is this? a. Interference b. Exploitative c. Allelopathy d. This is not an example of competition. 7. Character displacement is likely to _______ the competition coefficients in two competing species and to _______ resource partitioning. a. increase; increase b. lower; increase c. lower; eliminate d. increase; lower 8. Suppose that two species of Darwin’s finches live on the same island and eat seeds, but one species tends to eat larger seeds than the other one does. Based on this observation, we can conclude that these species are engaged in a. competitive exclusion. b. allelopathy. c. interference competition. d. resource partitioning.
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All of the options (a, b, and c) are examples of resources. Resources are substances or factors that can be used for survival and reproduction. Oxygen and water are both resources that organisms need to survive. So, the answer is not provided in the options. Show more…
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One example of competition in a tropical rainforest is when the shrubs and trees are growing together in one area. What do they compete for? A. sunlight and soil nutrients. B. oxygen and carbon dioxide. C. water and chemicals. D. chemicals and oxygen. 12. A food web results from the interconnected food chains. A. consumer B. producer C. food web D. biotic component 13. Why is the relationship between the corals and the algae in the coral reefs considered mutualistic? A. The corals benefit in the interaction and not the algae. B. The corals receive oxygen from algae, and the algae get protection from corals. C. The corals receive oxygen from algae while the algae are harmed. D. The corals and algae live together without harming each other. 14. What kind of interaction is shown when animals like crabs and mollusks help break down plant litter in a mangrove ecosystem through grazing? A. commensalism B. competition C. mutualism D. parasitism
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Please help. 1) Competition among species that share the same habitat is most likely to occur over ______. A. access to mates B. any resource that is limited in the environment C. space or shelter D. food or some form of nutrient 2) The potential for competition is greatest among closely related, ______ species that utilize similar resources. A. commensal B. sympatric C. allopatric D. interdependent 3) What might explain why predators reduce intraspecific competition in a community? A. Predators may coevolve with their prey. B. Predators may become adapted to prey only on one species. C. Predators may be commensals with other species. D. Predators may prevent prey populations from reaching carrying capacity. 4) Select all correct answers. Which type(s) of species interaction(s) involve one organism gaining and one organism losing? A. parasitism B. predation C. mutualism D. herbivory E. competition F. commensalism
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An ecologist studying several forest-dwelling, insect-eating bird species does not find any evidence of interspecific competition. The most likely explanation is (a) lack of a keystone species (b) low species richness (c) pronounced intraspecific competition (d) coevolution of predator-prey strategies (e) resource partitioning
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