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Population Ecology

Test Description: Chapter 13- 14

Instructions: Answer all questions to get your test result.

1) Organisms that can convert energy from the sun into living tissue are called

ACarnivores BAutotrophs CHeterotrophs DParasites

2) In the biosphere, energy flows through

AConsumers to producers to decomposers BProducers to decomposers to consumers CDecomposers to consumers to producers DProducers to consumers to decomposers

3) The percentage of energy that can flow from one trophic level to the next is about

A1% B10% C50% D100%

4) All of the organisms in an ecosystem are linked together into complex networks based on who eats whom, called

AEnergy Pyramid BFood Web CTrophic Level DFood Chain

5) Animals that eat only other animals are called

AProducers BHerbavoirs CCarnivores DOmnivores

6) Organisms such as bacteria and fungi, which breakdown dead tissue and release nutrients are known as

ADecomposer BOmnivore CCarnivore DProducer

7) When an ecosystem is limited by a single nutrient that is either scarce or cycles very slowly, this substance is called a (an)

ALimiting Factor BCarbon Compund CNitrogen Compund DNutrient Cycle

8) What is a population?

Arapid growth that takes place when a population lives with ideal condition BGroup of organisms of the same species that lives in a given area CLargest number of individuals that can be supported by a given environment DChange in population size

9) The largest number of individuals that can be supported by a given environment is called the

AGrowth Rate BZero Population Growth CExponential Population Growth DCarrying Capacity

10) A Density-dependent limiting factor

Ais more likely to limit the growth of a population regardless of their density Bincludes examples such as weather and spraying insecticides Cmore likely to limit the growth of large, dense populations Dis an organism that acts as a density-dependant limiting factor

*select an answer for all questions

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