Biomes on Earth: Lesson 7
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Biomes on Earth: Lesson 7

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Questions and Answers

What are the two main categories of biomes on Earth?

  • Tropical and Temperate
  • Terrestrial and Freshwater
  • Marine and Aquatic (correct)
  • Desert and Grassland
  • Which type of rainforest is characterized by a high level of biodiversity and is typically found near the equator?

  • Temperate Rainforest
  • Tropical Rainforest (correct)
  • Grassland
  • Desert
  • What is a common threat to grassland biomes?

  • Pollution
  • Climate Change
  • Overgrazing (correct)
  • Deforestation
  • Which biome is characterized by low temperatures, short growing seasons, and limited vegetation?

    <p>Tundra</p> Signup and view all the answers

    What is the term for the top layer of a tropical rainforest, which is exposed to direct sunlight and is home to a wide variety of plant and animal species?

    <p>Emergent Layer</p> Signup and view all the answers

    Which biome is characterized by a high level of salinity and is home to a wide variety of marine life?

    <p>Marine Biome</p> Signup and view all the answers

    Study Notes

    Biomes on Earth

    • Biomes are major terrestrial and aquatic ecosystems that support a wide range of plants and animals.

    Terrestrial Biomes

    • There are three main types of terrestrial biomes: rainforest, desert, and grassland.

    Rainforest Biomes

    • Rainforests are characterized by high temperatures, high humidity, and heavy rainfall.
    • There are two types of rainforests: tropical and temperate.
    • Tropical rainforests are found near the equator and have a diverse range of plant and animal species.
    • Temperate rainforests are found in cooler regions and have a more limited range of species.

    Parts of a Tropical Rainforest

    • A tropical rainforest consists of four layers: emergent layer, canopy layer, understory layer, and forest floor.

    Threats to Rainforests

    • Rainforests are threatened by deforestation, habitat fragmentation, and climate change.

    Desert Biomes

    • Deserts are characterized by low rainfall, high temperatures, and limited vegetation.
    • Examples of desert biomes include the Sahara Desert, Mojave Desert, and Gobi Desert.

    Threats to Deserts

    • Deserts are threatened by climate change, overgrazing, and human activity.

    Grassland Biomes

    • Grasslands are characterized by temperate climates, low rainfall, and limited vegetation.
    • Examples of grassland biomes include savannas, prairies, and steppes.

    Threats to Grasslands

    • Grasslands are threatened by habitat fragmentation, overgrazing, and climate change.

    Tundra Biome

    • Tundra is a cold, treeless biome found in Arctic and sub-Arctic regions.
    • The tundra is threatened by climate change, habitat fragmentation, and human activity.

    Marine Biomes

    • Marine biomes include coral reefs, estuaries, and open ocean ecosystems.
    • The ocean biome is the largest ecosystem on Earth, covering over 70% of the planet.

    Coral Reefs

    • Coral reefs are found in shallow, tropical waters and are characterized by a diverse range of marine life.

    Threats to Marine Biomes

    • Marine biomes are threatened by climate change, pollution, and overfishing.

    Freshwater Biomes

    • Freshwater biomes include rivers, lakes, and wetlands.
    • Freshwater biomes are threatened by habitat fragmentation, pollution, and human activity.

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    Description

    Test your knowledge on biomes, including major terrestrial and aquatic biomes, tropical rainforests, temperate rainforests, and their characteristics. Learn about the different parts of a tropical rainforest and explore examples of various types of forests.

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