9. The effects of competition between species that share a niche A. was described by Gause B. may lead to the exclusion of a competitor C. may lead to character displacement D. all of the above 10. Hutchinson's description of niche included A. n-dimensional space B. fundamental niche C. realized niche D. all of the above 11. Niches are defined by A. the abiotic and biotic features of the environment B. only the biotic features of the environment C. only the abiotic features of the environment D. the organism 12. Warblers feeding on similar foods in the same trees have demonstrated A. allopatry B. symbiosis C. intense competition between species D. resource partitioning
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The effects of competition between species that share niche was described by Gause may lead to the exclusion of a competitor may lead to character displacement. The answer is D. all of the above. Show more…
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13. The area where an organism lives and gets its resources is described as its a) niche b) ecosystem c) habitat d) community. 14. ______ is present when two species adapt in response to environmental (selective) pressure imposed by the other. a) coevolution b) natural selection c) resource evolution d) adaptive evolution. 15. In nature, ______ lead(s) to small populations in which genetic drift drastically affects gene pool frequencies. a) founder effect b) bottleneck effect c) both (a) and (b) d) no situation. 16. ______ are defined as a group of interbreeding subpopulations that share a gene pool and that are isolated reproductively from other species. a) populations b) communities c) superorganisms d) species e) subspecies.
Madhur L.
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
Sri K.
1. If two competing species occupied the same niche, and used limiting resources at the same rates per individual, then the competition coefficient would be: a) equal to one b) less than one c) more than one d) cannot determine 2. The net primary production that occurs in the open ocean is most similar to that of: a) terrestrial deserts b) tropical rainforests c) estuaries d) temperate forests 3. Which of the following is produced as a chemical defense against herbivores? a) ATP b) RuBP c) menthol d) fructose 4. When the phenotype of a given species is different when it is living in a habitat alone compared to when it is interacting with a competing species is evidence for: a) disruptive evolution b) intense predation c) mutualism 5. In temperate freshwater lakes, as the temperature of the surface water cools in the autumn and: a) cool water sinks so mixing occurs b) warm water rises so mixing occurs c) thermal stratification occurs d) none of the above d) character displacement
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