Ecosystems: Structure, Functions & Bio-Chemical Cycles Quiz — 7 Free Questions

Question 1

What real reason actually lets secondary succession proceed considerably faster than primary succession, following a disturbance?

Question 2

What real category of biogeochemical cycle does the nitrogen cycle actually belong to, alongside the carbon and water cycles?

Question 3

What term describes the process by which gaseous nitrogen actually gets converted into a usable form, such as ammonia, that plants can actually absorb?

Question 4

What overall picture do the phosphorus, sulfur, water, and oxygen cycles, covered across this whole pack, together actually give of Earth's own nutrient systems?

Question 5

What real human activities actually count among the leading causes of eutrophication in lakes and rivers?

Question 6

What two broad real categories do ecosystems actually get divided into, based on their own physical environment?

Question 7

What term describes ecological succession that actually begins on genuinely dry, barren land, such as bare rock or sand dunes?

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About Ecosystems: Structure, Functions & Bio-Chemical Cycles

This quiz opens with an ecosystem's own basic structure, its biotic and abiotic components, producers, consumers, and decomposers, and the levels of organisation, from population and community right through to biome.

It then covers how an ecosystem actually functions, food chains and food webs, trophic levels, the one-way flow of energy, the ten percent law, and the pyramids of numbers, biomass, and energy that actually describe it.

A considerable part of this quiz is devoted to productivity and ecological succession, gross and net primary productivity, and the gradual, real process by which a bare rock or a shallow pond actually develops into a mature, stable climax community.

It closes with the major biogeochemical cycles, carbon, nitrogen, phosphorus, sulfur, water, and oxygen, and the genuine human impact on them, including biomagnification, eutrophication, and the role of keystone and indicator species.