9 Biodiversity

• Absence of trees
• Permafrost

Which biome is described?

• Tundra

• Desert

• Deciduous Forest

• Tropical Rainforest

• Spines or waxy leaves
• Fewer stomata

Which biome is described?

• Tundra

• Desert

• Deciduous Forest

• Tropical Rainforest

• Colorful leaves in the fall
• Maple and oak trees

Which biome is described?

• Tundra

• Desert

• Deciduous Forest

• Tropical Rainforest

• Leaves with drip tips
• Canopy blocks sunlight from forest floor

Which biome is described?

• Tundra

• Desert

• Deciduous Forest

• Tropical Rainforest

Pioneer species

• change the area and make it safer from predatory organisms

• invade the area so that new organisms cannot be established

• modify the area and allow larger more complex organisms to appear

• use up all the existing resources and prevent establishment of non-native organisms

Different biomes support a different variety of organisms. Biodiversity contributes to sustainability. What contributes to the level of biodiversity and sustainability of an ecosystem?

• Variety of species with different adaptations makes it more like that some organisms will survive a disaster

• Greater genetic variation within species makes it more likely some individuals will survive

• The presence of a variety of herbivore species that can feed on a large number of different producer species helps ensure abundant prey for predators in the ecosystem.

• All

Predict how the garden would look if left unattended for three months.

• More flowers have bloomed

• The garden will be unchanged

• Weeds would have taken over the garden

• There will only be soil in the garden

Which biome has the lowest temperature?

• Tundra

• Tropical Rainforest

• Subtropical Desert

• Temperate Rainforest

Which biome has the highest precipitation?

• Tundra

• Tropical Rainforest

• Subtropical Desert

• Temperate Rainforest

Describe plant growth as ecological succession proceeds in a barren farm field.

• Plants are few and short at the beginning and then grow taller and more numerous.

• Trees grow best because there are no other trees in the field to shade them out.

• No plants will grow.

• All different plants will grow. You never know which will grow first, second, and so on.