Why do ecologists favor the term food web as opposed to food chain?
What will be an ideal response?
Ecological systems are far more complex than simple linear chains. Feeding relationships and energy flow among interacting organisms usually take many paths in a community. For instance, grasses are food for a variety of animals such as deer, mice, and rabbits. Birds eat a variety of insects, spiders, and berries. Soil bacteria decompose a variety of dead plants and animals. Some species sit at multiple trophic levels in a food web. Such complexities are lost in a simple food chain.
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If we want our government to be involved in reducing the environmental impact of food production, what should it do?
A. Give subsidies to consumers that buy organic food. B. Subsidize more ocean trawlers. C. Promote higher numbers of cattle on the same amount of land. D. Give tax breaks to synthetic pesticide companies.
Distortions in cognitive images can result from either individual biases or incomplete information
Indicate whether this statement is true or false.
Upwelling can increase biological productivity, but it is unable to influence weather conditions. Indicate whether the statement is true or false
Which countries in the Pacific have matriarchal traditions?
A) Australia B) New Zealand C) Marshall Islands D) New Guinea E) none of the above