Ecological Succession Demers

A sequence of biotic changes that regenerate or create an ecological community is known as

• migration

• factors

• succession

• erosion

The development of an ecosystem in an area that has been covered by lava begins with the

• breakdown of rock by pioneer species

• migration of animals

• growth of trees and shrubs

• appearance of soil

Lichens and mosses that first live in uninhabited areas are examples of

• non-native species

• pioneer species

• primary species

• secondary species

Secondary succession is most likely to occur

• after a forest fire

• with a pioneer species

• if a glacier shrinks

• on a new volcanic island

Tags

NGSS.MS-LS2-4

Which of the following statements about primary succession is true?

• it begins with a climax community

• small mammals are first to inhabit the area

• it only occurs after glaciers retreat

• it begins with bare rock

Tags

NGSS.MS-LS2-3

Pioneer species are the first

• trees to grow in an area that has been disturbed

• trees that replace the original trees after a forest fire

• organisms to live in previously uninhabited areas

• organisms to live in a forest canopy

The reestablishment of a damaged ecosystem in an area where the soil is intact is called...

• primary succession

• secondary succession

• pioneer succession

• symbiotic succession

In 1988 several large forest fires occurred in Yellowstone National Park. What process occurred after these fires?

• primary succession

• secondary succession

• pioneer succession

• symbiotic succession

Tags

NGSS.HS-LS4-5

An alder tree is not a pioneer species because

• alder trees are form of lichen

• it is not one of the trees that make up the final forest

• smaller organisms come before trees in succession

• pioneer species are always animals