Ecology

Review

The ability of the environments to function indefinitely without declining is called

A. environmental sustainabilityB. recyclingC. fusingD. natural balance

Which of the following is NOT a component in the solving of environmental problems?

A. Space travelB. Scientific assessmentC. Public educationD. Risk analysisE. Political action

Which of the following examples represents the most efficient transfer of energy to the highest trophic level of a food chain?

 A. bee clover cattle humanB. lettuce humanC. lettuce deer humanD. algae minnow trout human

The pride of lions in the forest of Oz is an example of a(n)

A. communityB. ecosystemC. populationD. biosphere

A student observes that an organism is green. A valid conclusion that can be drawn from this observation is that

A. the organism must be a plantB. the organism cannot be single celledC. the organism must be an animalD. not enough information is given to

determine whether the organism is a plant or an animal

In heterotrophs, energy for the life processes comes from the chemical energy stored in the bonds of

A. water moleculesB. oxygen moleculesC. organic compoundsD. inorganic molecules

Which situation has had the most negative effect on the ecosystems of Earth?

A. use of air pollution controlsB. use of natural predators to

control insect pestsC. recycling glass, plastic, and

metalsD. increasing human population

What is biodiversity?A. The rain forest in Costa Rica.B. The number of different species

found in an area or on the planet.

C. The number of threatened species found on a planet.

D. The number of habitats found in an area or on the planet.

In most habitats, the removal of predators will have the most immediate impact on a population of

A. producersB. decomposersC. HerbivoresD. microbes

Which level most likely contain plants?

The growth rate of a population is expressed as:

A. (b+i)-(d+e) B. r-td

C. k-r D. b-d

Acid rain is generally caused by

A. burning fossil fuels

B. waterC. AcidsD. animals

The law that governs the protection of species that are in danger of dying out is the ___.

A. Ecosystem Support ActB. Threatened Species ActC. Endangered Species ActD. Extinction Prevention Act

A species that has numerous individuals in the wild but whose numbers are dwindling is ____.

A. ThreatenedB. ProtectedC. delistedD. endangered

Peregrine falcons are endangered in PA because of

A. DDTB. Habitat lossC. PredatorsD. Mountain lions

Which of the following organisms are now extinct in PA?

A. Peregrine falconB. Bald EagleC. Panda bearD. Passenger pigeon

Vultures, which are classified as scavengers, are an important part of an ecosystem because they

A. Hunt herbivores, limiting their populations in an ecosystem

B. Feed on dead animals, which aids in the recycling of environmental materials

C. Cause the decay of dead organisms which releases usable energy to herbivores & carnivores

D. Are the first level in food webs & make energy available to all the other organism in the web

Which of the following is NOT a way that water gets from the surface of the planet to the atmosphere?

A. transpirationB. evaporationC. precipitation

____ is the absorbed from the air by plants.

A. Carbon dioxideB. NeonC. OxygenD. Nitrogen

Deforestation will most directly result in an immediate increase in

A. atmospheric carbon oxideB. atmospheric ozoneC. wildlife populationsD. renewable resources

Organism that only eats plants

A. HerbivoreB. CarnivoreC. DecomposerD. Bacteria

Includes the biosphere, atmosphere, & lithosphere

A. EcologyB. BiosphereC. EcosphereD. Biotic

A feeding level that is a certain number of steps away from the sun.

A. AtomB. Food webC. Trophic levelD. Food chain

Non-living factor in the environment

A. BioticB. AbioticC. BacteriaD. Decomposer

Group formed by several populations

A. EcosphereB. EcosystemC. CommunityD. Habitat

Geo means

A. Land, rocksB. LifeC. MoleculesD. Sinks

Element that does not enter the atmosphere

A. CarbonB. PhosphorusC. OxygenD. Water

Number of deaths per 1000 individuals

A. Zero population growthB. Growth rateC. Doubling timeD. Death rate

The migration of individuals moving from the population

A. EmigrationB. ImmigrationC. Moving

Birth rate = death rate

A. Zero population growthB. Growth rateC. Doubling timeD. Birth rate

Concentration of pollutant increasing as it moves up the food chain.

A. NicheB. BiomagnificationC. Carrying capacityD. Germination

Role that the organism plays in the ecosystem

A. NicheB. BiomagnificationC. Carrying capacityD. Germination

Worms, insects & snail

A. InvertebratesB. VertebratesC. CarnivoresD. Decomposer

When seeds begin to grow

A. GerminationB. FertilizationC. PollinationD. Biomagnification

Two or more organs working together to perform a function

A. OrgansB. Organs systemC. CellsD. Organism

Our world has approximately ____ people.

A. 6 billionB. 6.7 billionC. 12 billion

In an ecosystem, which component is NOT recycled?

A. WaterB. energyC. oxygenD. carbon

Plants that complete their life cycles in a year or less are called _______________.

A. biennialsB. annualsC. perennialsD. monocots

____ is the process that allows water to enter the atmosphere by passing into the roots of plants and out through the leaves.

A. TranspirationB. EvaporationC. CondensationD. Precipitation

The difference between primary and secondary succession is that primary succession

A. results in an climax communityB. starts with the formation of soil

from bare rockC. causes a community to change

over timeD. occurs after a farmer stops

plowing a field