Chapter 5 L3 Ecological Succession Review

A process of one ecological community changing into another one.

• aquatic succession

• ecological succession

• eutrophication

• climax community

Answer explanation

The correct answer is 'ecological succession' as it refers to the process where one ecological community gradually transforms into another, involving changes in species composition and ecosystem structure over time.

The final stage of succession in a land ecosystem is a . . .

• lake

• climax community

• desert

• wetland

Answer explanation

The final stage of succession in a land ecosystem is a climax community, which represents a stable and mature ecological state where species composition remains relatively unchanged until disrupted.

Freshwater ecosystems change over time as sediment is carried by rainwater and streams and build up in the bottom of ponds, lakes, and wetlands. Eventually, so much sediment has built up that the water disappears to become land. This process is called. . .

• primary succession

• aquatic succession

• secondary succession

• pollution

Answer explanation

The process described is called aquatic succession, where sediment accumulation transforms aquatic ecosystems into terrestrial ones over time.

Tags

NGSS.MS-ESS2-2

Type of ecological succession that occurs in areas where there is little or no soil that remains such as after volcanic eruptions, landslides, flooding, or in a sand dune.

• eutrophication

• secondary succession

• aquatic succession

• primary succession

Answer explanation

Primary succession occurs in lifeless areas with little or no soil, such as after volcanic eruptions or landslides. It involves the gradual establishment of ecosystems, starting with pioneer species.

True or false; Climax communities differ depending on the type of biome that they occur in.

• true

• false

Answer explanation

True. Climax communities are the final stage of ecological succession and vary by biome due to differences in climate, soil, and species composition, leading to distinct community structures in forests, deserts, grasslands, etc.

The first species to colonize new or disturbed land are called . . .

• pioneer species

• eutrophication

• first species

• primary species

Answer explanation

The correct answer is 'pioneer species' because these are the first organisms to colonize new or disturbed environments, initiating ecological succession.

This process takes place in areas where ecosystems have been disturbed due, but the soil was not destroyed. Such as after a forest fire or deforestation.

• eutrophication

• secondary succession

• aquatic succession

• primary succession

Answer explanation

The process described is secondary succession, which occurs in areas where ecosystems have been disturbed but the soil remains intact, such as after a forest fire or deforestation. This distinguishes it from primary succession.

The process of a body of water becoming nutrient rich.

• secondary succession

• ecological succession

• eutrophication

• climax community

Answer explanation

Eutrophication is the process where water bodies become nutrient-rich, often due to runoff containing fertilizers, leading to excessive growth of algae and other plants. This distinguishes it from other ecological processes.

The gradual replacement of one plant community by another over time.

• Eutrophication

• Biodiversity

• Deforestation

• Ecological succession

Answer explanation

Ecological succession refers to the gradual process where one plant community replaces another over time, making it the correct choice. Eutrophication, biodiversity, and deforestation do not specifically describe this gradual replacement.

True or false; An intertidal community is the final stage of aquatic succession.

• True

• False

Answer explanation

False; an intertidal community is not the final stage of aquatic succession. Succession can continue beyond intertidal zones, leading to other ecosystems such as estuaries or coastal wetlands.