What is the difference between the concepts of food chain and food web?

251

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In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?

414

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What is eutrophication?

348

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What is a biome?

339

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What is transgenic food?

269

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What is the water cycle?

326

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What is the primary energy source for life on earth?

304

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How are grasslands classified?

271

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What is inharmonious ecological interaction?

240

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What is environmental resistance?

291

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Is monoculture a system that contributes to great biological diversity of an ecosystem?

339

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Why waste is considered one of the major environmental issues?

345

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What are the three main types of tropic pyramids studied in Ecology?

260

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What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?

333

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Which terrestrial vertebrate group is extremely rare in deserts?

270

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