Quiz on Biotic and Abiotic Factors

Which interaction of a biotic and an abiotic factor can help stabilize a forest area in North Carolina? Mark only one oval.

• increased precipitation, reducing soil erosion in the area

• increased decaying organic material, adding nutrients to soil in the area

• decreased water salinity, reducing biodiversity of animals in the area

• decreased number of predators, allowing the number of prey to increase in the area

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What can scientists infer from a pattern of narrow tree rings over several consecutive years? Mark only one oval.

• A period of excessive rainfall

• A period of drought or lower than average rainfall

• An increase in atmospheric carbon dioxide

• A rise in average global temperatures

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NGSS.MS-LS1-5

Which foods are derived from organisms that occupy the level that contains the greatest amount of energy in a biomass pyramid? Mark only one oval.

• shrimp and rice

• chicken and lettuce

• bread and tomatoes

• hamburger and french fries

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The red dots in the image below represent the concentration of Mercury in parts per million (ppm). This image is a representation of which concept?

• Trophic level

• Poisoning

• Biomagnification

• Biodiversity

Which statement is best supported by the diagram below of the carbon-oxygen cycle?

• Producers generate oxygen and utilize carbon dioxide

• Decomposers add oxygen to the atmosphere and remove carbon dioxide

• Consumers generate oxygen and utilize carbon dioxide

• Combustion adds oxygen to the atmosphere and removes carbon dioxide

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The characteristics of some organisms are listed below. trout = carnivorous fish minnow = herbivorous fish algae = producers osprey = large carnivorous birds bacteria = decomposers Based on the information given above, which food chain is most probable?

• bacteria ---> algae ---> trout ---> minnow ---> osprey

• minnow ---> algae ---> trout ---> bacteria ---> osprey

• algae ---> minnow ---> trout ---> osprey ---> bacteria

• trout ---> osprey ---> algae ---> minnow ---> bacteria

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Greenscape Valley, a once lush and thriving ecosystem, is devastated by a volcanic eruption. The eruption covers the valley in a thick layer of volcanic rock and ash, wiping out all previous vegetation and leaving the landscape barren and lifeless. What does the image represent in terms of ecological processes?

• The life cycle of a plant

• The seasonal changes in a forest

• The stages of primary succession

• The stages of secondary succession

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At which level of the food pyramid is the smallest percentage of total stored energy found?

• A

• B

• C

• D

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Biomes include both biotic and abiotic elements. Which set includes BOTH biotic and abiotic elements of an estuary?

• cordgrass, water salinity, great blue herons

• ospreys, oysters, black needle rush

• silt, air temperature, tidal pattern

• periwinkles, bats, egrets

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NGSS.MS-LS2-3

The table lists some ways that plants have adapted to survive in a desert biome. Which statements describe adaptations to biotic factors in a plant’s desert biome?

• 1 and 2

• 1 and 3

• 2 and 4

• 3 and 4

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NGSS.MS-LS1-5

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