Seventh lecture

Biomes

•Terrestrial biomes.

•Aquatic biomes.

a) Terrestrial biomes1-Tundra.

2-Taiga (Boreal Forest).

3-Temperate deciduous Forests.

4-Tropical Rain Forests.

5-Grasslands.

6-Deserts.

1-Tundra

• Treeless.

• Short summer.

• Under- story is frozen.

Caribou, an animal characteristic of the tundra

2-Taiga (Boreal Forest)

• Below tundra.

• Contain evergreen coniferous trees

3-Temperate deciduous Forests

Trees shed their leaves

4-Tropical Rain Forests

High temp.Rainfall.

5-Grasslands• Less rainfall.

• Trees are unable to develop.

• Most of plants are grassy.

• Serve as food for grazing animals.

6-Deserts

• Driest.

• Days are hot.

• Nights are cold.

• Cactus and others are adapted to conserve water.