5.2 / 6.2 Quiz

A pioneer species is...

• a large organism
• the first organisms to adapt to a new environment 
• The best organism 
• Abiotic organisms 

What is the difference between primary and secondary succession?

• Primary succession already has soil.
• Primary has soil and secondary does not
• soil is present in both
• primary has no soil and secondary has soil

A large tree forest is an example of ...

• a small community
• a abiotic community
• a climax community
• a pioneer species 

Which is the correct order in primary succession?

• Rocks, Lichens & Mosses, Bushes & Shrubs, Trees
• Lichens & Mosses, Rocks, Trees, Bushes & Shrubs 
• Trees, Bushes and Shrubs, Lichens & Mosses, Lichens & Mosses
• Rocks, Grass, Trees, Bushes & Shrubs

Why does primary succession take longer to reach climax community?

• Because trees do not perform photosyntheses.
• Because climax community is in a forrest.
• Because primary succession already has soil
• Because primary succession does not have soil

After a volcanic eruption the lava cools and becomes rock. Which succession must take place in order for vegetation (plants) to return?

• Primary Succession

• Secondary Succession

During a forest fire most vegetation (plants) burn. Which ecological succession will take place after a forest fire?

• Primary

• Secondary

What is a limiting factor?

• Factors that always increase a population

• Factors that always decrease a population

• Resources that are unlimited

• Factors/resources that limit how many organisms can live in an area at the same time

Excessive amounts of rain caused a flood in the southwest United States that resulted in substantial amounts of deaths in the rabbit population? This situation is an example of a density _____________ limiting factor.

• density-independent
• density-dependent
• density- too high
• density- too low

A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

• Density-Dependent: Competition

• Density-Independent: Competition

• Density-Dependent: Predator-Prey

• Density-Independent: Predator-Prey