Ecology and Environmental Science Quiz

What defines a biome?

• The specific animals present

• Climate and dominant vegetation

• Geographical size

• The presence of water only

What is an abiotic factor in a forest ecosystem?

• Deer

• Soil nutrients

• Oak trees

• Birds

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Which of the following is an example of a biotic factor?

• Temperature

• Rock formations

• Bacteria

• Precipitation

How do abiotic and biotic factors influence biome classification in North Carolina?

• Only abiotic factors like temperature matter

• Biotic factors determine all biomes

• Both abiotic (climate) and biotic (species) factors interact

• Only water availability determines biome classification

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Why is biodiversity important for ecosystem resilience?

• It reduces competition among species

• It makes ecosystems more vulnerable to disturbance

• It enhances an ecosystem’s ability to recover from disturbances

• It simplifies food chains

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A keystone species is important because:

• It has no predators

• It shapes its ecosystem disproportionately

• It eats the most plants in the ecosystem

• It is at the top of the food chain

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How does habitat fragmentation affect ecosystems?

• It creates larger habitats for all species

• It isolates populations and reduces genetic diversity

• It increases the number of species in an area

• It has no significant effects

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Which human activity contributes most to deforestation?

• Planting more trees

• Urban development and agriculture

• Ecotourism

• Conservation programs

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What is a major consequence of introducing invasive species?

• Increased biodiversity

• Disruption of native species populations

• Restoration of ecosystems

• Stable ecosystems

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Which process removes carbon dioxide from the atmosphere?

• Respiration

• Photosynthesis

• Burning fossil fuels

• Decomposition

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