In some marine habitats in New England, the population density of lobsters has been depleted due to heavy fishing. When this happens, it often follows that the diversity of species in the biological communities is reduced. Based on this observation, how would you characterize lobsters? a keystone organism a decomposer a crustacean a superior predator a producer The composition of a community refers to the nutrients available in the soil. type of succession that occurs locally. sunlight available to drive the energy needed for metabolism. extent vegetation covers the ground--a desert has low composition. types of species adapted to living there. Small fish sometimes swim very close to large predatory fishes such as sharks. There is no risk since the shark does not feed on these smaller fish. The small fish are able to eat the remains of prey such as seals that the shark rips apart when eating. The relationship between the shark and the small fish is an example of co-evolution. parasiticism. mutualism. commensalism.

In some marine habitats in New England, the population density of lobsters has been depleted due to heavy fishing. When this happens, it often follows that the diversity of species in the biological communities is reduced. Based on this observation, how would you characterize lobsters? a keystone organism a decomposer a crustacean a superior predator a producer The composition of a community refers to the nutrients available in the soil. type of succession that occurs locally. sunlight available to drive the energy needed for metabolism. extent vegetation covers the ground--a desert has low composition. types of species adapted to living there. Small fish sometimes swim very close to large predatory fishes such as sharks. There is no risk since the shark does not feed on these smaller fish. The small fish are able to eat the remains of prey such as seals that the shark rips apart when eating. The relationship between the shark and the small fish is an example of co-evolution. parasiticism. mutualism. commensalism.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter24: Principles Of Ecology

Section: Chapter Questions

Problem 1SQ

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Phytoplankton absorb a very small concentration of a pollutant and are then eaten by zooplankton. Smelt eat the zooplankton and then Lake trout eat the smelt. At the top of the food chain, the concentration of the toxic chemical can be so high that it is dangerously toxic to the herring gull or the herring gull's offspring. This is an example of _____. a biomagnification b bioaccumulation c air pollution d habitat loss
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Which of the following describes an abiotic factor in a forest? earthworms that burrow through the forest soil. fungi in the soil that feed on dead organic matter. animals such as deer that migrate through the forest but do not eat the forest. all the plants that are growing alongside the trees. sunlight that filters through the treetops. As the latitude increases, which biome sequence would be present? tundra, coniferous forest, deciduous forest, tropical forest tropical forest, coniferous forest, deciduous forest, tundra tundra, deciduous forest, coniferous forest, tropical forest tropical forest, deciduous forest, coniferous forest, tundra Grasslands do NOT have trees because they are next to deserts. there is too much snow in winter. the soil is poor. there is too much sun in summer. the limited rain.
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Clearcutting trees from a wooded area includes cutting down and removing all vegetation in the area. Clearcutting can have negative effects on an ecosystem, but it is also said to have benefits to the ecosystem. Possible benefits of clearcutting include clearing the area of dead trees to help regenerate new, healthier trees. What type of ecological succession is clearcutting an example of? regenerative succession pioneer succession primary succession secondary succession
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		a keystone organism
		a decomposer
		a crustacean
		a superior predator
		a producer

		nutrients available in the soil.
		type of succession that occurs locally.
		sunlight available to drive the energy needed for metabolism.
		extent vegetation covers the ground--a desert has low composition.
		types of species adapted to living there.