13.2 Understanding Biomes

Which of the following is NOT one of the five distinct biomes of the Earth?

• Forest

• Desert

• Mountain

• Aquatic

What percentage of known plant and animal species are found in tropical rainforests?

• 30%

• 50%

• 70%

• 90%

Which biome is described as having low rainfall and temperature extremes?

• Forest

• Desert

• Grassland

• Tundra

What is a common characteristic of the tundra biome?

• High temperatures

• Abundant tree cover

• Low temperatures

• High rainfall

Which biome is most vulnerable to global warming due to its reliance on snow cover?

• Forest

• Desert

• Grassland

• Tundra

What type of aquatic biome contains very little salt and is found on land?

• Marine

• Freshwater

• Coral reefs

• Estuaries

What is the term for the edge of the area in which trees are able to grow?

• Permafrost

• Treeline

• Grassland

• Desert

Biomes are sometimes referred to as

• ecosystems

• mountains

• environments

• climates

What are biomes?

• places that are man-made

• places that are difficult for humans to live

• paces from the polar regions

• places that share a similar climate and life forms

The most diverse ecosystem on the Earth is

• tundra

• forest

• desert

• aquatic