Eco - Biomes & life in Earth's systems

What term describes a level of organization that contains only one species?

• ecosystem

• community

• population

• biome

Which of the following is ordered correctly from largest to smallest?

• organism, population, community, ecosystem, biome

• ecosystem, biome, community, population, organism

• biome, ecosystem, community, population, organism

• biome, ecosystem, population, community, organism

Which is a biotic factor in an earthworm's ecosystem?

• soil

• soil bacteria

• moisture in soil

• gravel

How are the biosphere and biota related?

• Biota are the living things that inhabit the biosphere.

• The biosphere is part of the biota.

• Both the biota and the biosphere are part of the hydrosphere.

• Both the biota and the biosphere are part of the geosphere.

Which Earth system includes everything below Earth's surface?

• hydrosphere

• geosphere

• biosphere

• atmosphere

Which of Earth's systems are humans part of?

• the hydrosphere

• the part of the biosphere that doesn't include the biota

• the biota portion of the biosphere

• atmosphere

Why can't trees grow in the tundra?

• Their roots cannot anchor the tree in the permafrost

• Precipitation is limited and permafrost captures most moisture.

• There is not enough sunlight.

• The average temperature is too low.

In which biome would you expect to find nocturnal animals and plants with deep root systems?

• grassland

• tropical rain forest

• desert

• taiga

Where do most organisms in a tropical rain forest live?

• on the forest floor

• underground

• in the canopy

• in the shade

Why are mountains not considered biomes?

• They have no specific plant community.

• They have a plant community but no animal community.

• No organisms live on mountaintops.

• Their plant and animal communities change with elevation.