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3.3 & 3.4 Review

Test Description: Ecology review

Instructions: Answer all questions to get your test result.

1) Compared to land, the open oceans

Ahave less zooplankton. Bcontain unlimited nitrogen. Care rich in silica and iron. Dare nutrient-poor environments.

2) All the interconnected feeding relationships in an ecosystem make up a food

Aweb Bnetwork Cinteraction Dchain

3) The total amount of living tissue within a given trophic level is called the

Atrophic mass Borganic mass Cenergy mass Dbiomass

4) Carbon cycles through the biosphere in all of the following processes EXCEPT

Aburning of fossil fuels Bdecomposition of plants and animals Cphotosynthesis Dtranspiration

5) The movements of energy and nutrients through living systems are different because

Aenergy flows in one direction, and nutrients recycle. Benergy is limited in the biosphere, and nutrients are always available. Cnutrients flow in two directions, and energy recycles. Denergy forms chemical compounds, and nutrients are lost as heat.

6) When water is absorbed into the ground, this process is

Abecoming groundwater Btaken up through transpiration Cevaporation Dprecipitation

7) Only about 10% of the energy in a trophic level is available to organisms in the next trophic level

ANot me BTrue CNot me DFals

8) Aquatic ecosystems can receive a large input of a limiting nutrient from the runoff from heavily fertilized fields

ATrue BFalse CNot me DNot me

9) An organism that uses inorganic chemicals to make their own energy are

Ascavengers Bchemosynthetic Cdecompsers DPhotosynthetic

10) What are bacteria?

AProducers BDecomposers CConsumers DScavengers

*select an answer for all questions

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