Successions

Which of the following is not an example of secondary succession?

• forest fire

• volcano

• tornado

• hurricane

During which stage of succession is there the most biodiversity?

• Beginning

• Middle

• End

• Biodiversity is stable

Tags

NGSS.MS-LS2-5

What is the pioneer species in primary succession?

• mosses and lichens

• grasses

• insects

• shrubs

What is the climax community?

• A community right after a disturbance

• A community in the middle of succession

• A community right before a disturbance occurs

• A community once it has returned to its stable state after a disturbance

How long does secondary succession typically take?

• 200-1000 years

• 2000-10,000 years

• 20-100 years

• 10,000+ years

How long does primary succession typically take?

• 10-100 years

• 100-1000 years

• 1000- 10,000 years

• 10,000+ years

Which of these types of environments is MOST LIKELY to experience the arrival of a pioneer species?

• an old growth forest

• an undisturbed prairie

• an established mountain lake

• a newly formed volcanic island

Which of these types of environments experiences the LEAST change in the total number and type of species over time?

• an ecosystem with only pioneer species

• an ecosystem that is in primary succession

• an ecosystem that is in secondary succession

• an ecosystem with a climax community

What is the relationship between ecological succession and equilibrium in an ecosystem?

• Ecological succession helps maintain equilibrium in an ecosystem.

• Ecological succession prevents ecosystems from ever reaching equilibrium.

• There is no relationship between ecological succession and equilibrium.

• Ecological succession and equilibrium are the same thing.

Tags

NGSS.MS-LS2-4

Why does secondary succession occur faster than primary succession?

• The environmental conditions

  are more extreme in primary

  succession.

• There are more pioneer species

  in secondary succession.

• Fewer changes must occur in

  secondary succession.

• There are more trophic levels in

  secondary succession.

Tags

NGSS.MS-LS2-4