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Organisms and the Environment

Organisms and the Environment. Chapter Six: Biomes. 6.1 Climates and Biomes 6.2 Deserts and Grasslands 6.3 Temperate Forests and Rainforests 6.4 Taigas and Tundras. Investigation 6A. Environments Around School. What causes different microclimates within an ecosystem?. 6.2 Deserts.

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Organisms and the Environment

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  1. Organisms and the Environment

  2. Chapter Six: Biomes • 6.1 Climates and Biomes • 6.2 Deserts and Grasslands • 6.3 Temperate Forests and Rainforests • 6.4 Taigas and Tundras

  3. Investigation 6A Environments Around School • What causes different microclimates within an ecosystem?

  4. 6.2 Deserts • A desertis a climate region that averages less than 35 cm. of rainfall per year. • Due to a lack of clouds, deserts get more than twice as much incoming sunlight as other regions. Why don’t deserts have cloud cover?

  5. 6.2 Rainshadow deserts • One desert found in eastern Washington state, is the result of the “rainshadow effect.” • Moist air rises as it travels up the western slope of the Cascade mountains range and cools, causing lots of rain. • By the time the air reaches the eastern side, there is very little moisture left.

  6. 6.2 Desert life • Many different kinds of organisms have adapted to desert life. • In fact, only the tropical rainforest biome contains a greater number of plant and animal species.

  7. 6.2 Grasslands • Grasslandsare found on every continent except Antarctica. • There are two types of grasslands: • savannas (tropical grasslands), and • temperate grasslands. Which type of grassland is found in South America?

  8. 6.2 Grasslands • Savannas are characterized by two seasons: rainy and dry. • During the rainy season, from 50 to 127 cm. of rain can fall. • This season is followed by a drought, in which wildfires can occur. • Fires and poor soil conditions prevent the growth of most trees.

  9. 6.2 Grasslands • In some areas, trees grow only on termite mounds. • The isolated trees found in savannas have cork-like bark that protect against fire damage.

  10. 6.2 Grasslands • Many large mammals of the savanna, including wildebeest have long legs that enable them to outrun fires.

  11. 6.2 Grasslands • Around the world, grasslands go by different names.

  12. Which type of grassland is closest to where you live?

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