6th T4L2 Succession p,181-182

What is the series of changes that occur in an area where no soil or organisms exist?

• Primary succession

• Mature communities

• Pioneer species

• Natural disasters

What are the first species to populate an area called?

• Mature communities

• Natural disasters

• Pioneer species

• Primary succession

Which organisms are usually the pioneer species in an area?

• Mosses and lichens

• Seed-producing plants

• Animals and birds

• Fungi and algae

What do lichens give off that helps dissolve rock into soil?

• Water

• Oxygen

• Acidic compounds

• Nutrients

What can cause large changes in one part of a system?

• Seedlings

• Rainfall

• Wind and water

• Mature communities

What do plants shed that breaks down to make more soil?

• Leaves

• Seeds

• Roots

• Flowers

What can further enhance the soil by leaving waste and their own remains?

• Plants

• Seedlings

• Animals

• Lichens

How long can a community last if it is not disturbed or disrupted?

• Centuries

• Decades

• Years

• Months