Ecology EL Students

How does the latitude of the tundra generally compare with that of the taiga?

• The tundra is in polar regions while the taiga is near the equator

• The taiga is in polar regions while the tundra is near the equator

• The tundra is in polar regions while the taiga is slightly closer to the equator

• The taiga is in polar regions while the tundra is slightly closer to the equator

Which of the following biomes is characterized by low rainfall, freezing temperature and the presence of polar bears and scarce vegetation?

• Taiga

• Tundra

• Temperate forest

• Desert

The map below represents a particular Earth biome:

This biomes conditions are favorable to organisms such as cacti and rattlesnakes. Which answer choice most closely describes the biomes environmental conditions?

• High temperature, high precipitation

• High temperature, low precipitation

• Low temperature, high precipitation

• Low temperature, low precipitation

Which description most accurately describes the biosphere?

• A group of organisms of the same species

• A group of organisms of different species

• A group of organisms of different species along with the abiotic factors that make up their environment

• All life on Earth and their physical surroundings

The diagram represents a food web for a community of organisms:

A disease causes the rabbit population to decline drastically. How would this impact the community?

• The mouse population would decrease

• The grasshopper population would decrease

• The fox population would decrease

• The snake population would decrease

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The factor that has the biggest influence on biome classification is:

• Topography

• Magnetic fields

• Soil type

• Climate

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Many of the biomes that exist on Earth can be found in the western part of North Carolina. What is the primary reason for the existence of such a wide range of biomes in this area?

• The rivers and lakes in the mountain areas

• The wide range of altitude of the mountains

• The rocks that make up the mountains

• The wind and water erosion of the mountains

Which of the following terms is defined as genetic variation within populations and variation of populations within ecosystems that makeup the biosphere?

• Biome

• Biodiversity

• Ecosystem

• Niche

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How do warmer temperatures and higher rainfall generally influence biodiversity?

• Biodiversity increases

• Biodiversity decreases

• Biodiversity stabilizes

• Biodiversity increases then decreases

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How can a global loss of biodiversity impact the Earth?

• It can increase ecosystem stability

• It can promote a wider variety of life within the biosphere

• It can lead to a global shortage of food

• It can increase the life expectancy of all species

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