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Ecology. Review. The ability of the environments to function indefinitely without declining is called environmental sustainability B. recycling fusing D. natural balance. Which of the following is NOT a component in the solving of environmental problems ? Space travel

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

  • environmental sustainability

B. recycling

  • fusing

D. natural balance


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

  • Space travel
  • Scientific assessment
  • Public education
  • Risk analysis

E. 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  human

B. lettuce  human

C. lettuce  deer  human

D. algae  minnow trout  human


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

  • community
  • ecosystem
  • population

D. 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 plant

B. the organism cannot be single celled

C. the organism must be an animal

D. 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

  • water molecules

B. oxygen molecules

  • organic compounds

D. inorganic molecules


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

A. use of air pollution controls

B. use of natural predators to control insect pests

C. recycling glass, plastic, and metals

D. 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. producers

B. decomposers

  • Herbivores

D. microbes


The growth rate of a population is expressed as:

  • (b+i)-(d+e) B. r-td

C. k-r D. b-d


Acid rain is generally caused by

  • burning fossil fuels

B. water

  • Acids

D. animals


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

  • Ecosystem Support Act
  • Threatened Species Act
  • Endangered Species Act
  • Extinction Prevention Act

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

  • Threatened
  • Protected
  • delisted

D. endangered


Peregrine falcons are endangered in PA because of

  • DDT
  • Habitat loss
  • Predators
  • Mountain lions

Which of the following organisms are now extinct in PA?

A. Peregrine falcon

B. Bald Eagle

C. Panda bear

D. Passenger pigeon


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

  • 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. transpiration

B. evaporation

C. precipitation


____ is the absorbed from the air by plants.

  • Carbon dioxide

B. Neon

  • Oxygen

D. Nitrogen


Deforestation will most directly result in an immediate increase in

A. atmospheric carbon oxide

B. atmospheric ozone

C. wildlife populations

D. renewable resources


Organism that only eats plants

  • Herbivore
  • Carnivore
  • Decomposer
  • Bacteria

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

  • Atom
  • Food web
  • Trophic level
  • Food chain

Non-living factor in the environment

  • Biotic
  • Abiotic
  • Bacteria
  • Decomposer

Group formed by several populations

  • Ecosphere
  • Ecosystem
  • Community
  • Habitat

Geo means

  • Land, rocks
  • Life
  • Molecules
  • Sinks

Number of deaths per 1000 individuals

  • Zero population growth
  • Growth rate
  • Doubling time
  • Death rate

Birth rate = death rate

  • Zero population growth
  • Growth rate
  • Doubling time
  • Birth rate

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

  • Niche
  • Biomagnification
  • Carrying capacity
  • Germination

Role that the organism plays in the ecosystem

  • Niche
  • Biomagnification
  • Carrying capacity
  • Germination

Worms, insects & snail

A. Invertebrates

B. Vertebrates

C. Carnivores

D. Decomposer


When seeds begin to grow

  • Germination
  • Fertilization
  • Pollination
  • Biomagnification

Our world has approximately ____ people.

  • 6 billion
  • 6.7 billion

C. 12 billion


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

A. biennials

B. annuals

C. perennials

D. monocots


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

  • Transpiration

B. Evaporation

  • Condensation

D. Precipitation


The difference between primary and secondary succession is that primary succession

A. results in an climax community

B. starts with the formation of soil from bare rock

C. causes a community to change over time

D. occurs after a farmer stops plowing a field