Environmental Science Final Exam REVIEW

The birds, insects, plants, fungi, and other organisms that reside in a nearby wetland.

• Population

• Organism

• Molecules

• Community

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A(n) _________ species is one that moves into an ecosystem as a result of human intervention.

• endemic

• endangered

• invasive

Which of the following is an example of secondary succession?

• growth of plants after a forest is destroyed by fire

• breaking down of bare rock by fungi and mosses

• appearance of weeds in cracks in a concrete surface

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NGSS.MS-LS2-4

Pictures Q, R, S, and T, in Figure 2.6, show the levels of organization of living things in a desert ecosystem. Which of the following shows the correct order of these pictures from the highest level to the lowest level of organization?

• T-S-Q-R

• R—Q—T-S

• S-T-R—Q

• Q-R-T-S

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Which of the following best describes how the chemical energy travels up the food pyramid?

• Chemical energy is used by each of the organisms in the food pyramid, resulting in less energy as it moves up the pyramid.

• Chemical energy is used by producers but created by consumers, resulting in fluctuations in the amounts of energy throughout the food pyramid.

• Chemical energy is not needed by the organisms in the food pyramid, resulting in equal amounts of energy throughout the food pyramid.

• Chemical energy is made by each of the organisms in the food pyramid, resulting in more energy as it moves up the pyramid.

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In an African savanna, there are communities of giraffe, zebra, lion and acacia trees. What factors would you need to include to accurately describe the savanna's ecosystem?

• remove the zebra and lion

• include the temperature, intensity of light and soil pH

• include ants and grasses

• remove the acacia trees

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The photosynthetic algae shown in Figure 2.4 are classified as

• decomposers

• consumers

• parasites

• producers

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The term "biodiversity" refers to

• The number and variety of species that live in an area.

• The number and variety of species living on Earth.

• The number and variety of species that are considered renewable.

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At each stage of the trophic levels, how much energy is lost?

• 99%

• 10%

• 90%

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The diagram shows a model that Peter made of the carbon cycle. CO₂ cycle. Which mistake did Peter make in the model?

• Plants do not lose carbon through respiration.

• The burning of fossil fuel does not release carbon.

• Organisms that decay do not deposit carbon in the soil.

• Animals do not breathe carbon dioxide from the atmosphere.

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