Biomes

The video explains biomes, which are geographic regions defined by their specific flora and fauna. It distinguishes biomes from ecosystems, noting that a biome can contain multiple ecosystems. Examples include the Sahara desert and aquatic biomes like coral reefs. Scientists classify biomes differently, with some recognizing six main types, while others prefer more detailed classifications. The video also discusses how climate change can transform biomes, as seen in the Sahara's historical shift from a lush landscape to a desert.

What factors are crucial in determining the variety of life within a biome?

• The altitude and longitude

• The amount of light, temperature, and type of soil

• The presence of human settlements

• The amount of rainfall and wind speed

What is a key difference between a biome and an ecosystem?

• Biomes are found only in deserts

• A biome includes only plants, while an ecosystem includes animals

• An ecosystem is larger than a biome

• A biome is a specific geographic region, while an ecosystem is not

Which of the following is NOT one of the six main biomes identified by some scientists?

• Grassland

• Forest

• Freshwater

• Urban

How do some scientists prefer to classify forest biomes?

• By climate and life characteristics

• By the types of animals present

• By the size of the forest

• By the number of trees

What is an example of a biome that has changed due to climate shifts?

• The Amazon Rainforest

• The Sahara Desert

• The Arctic Tundra

• The Great Barrier Reef