Ecosystem Relationships and Changes Quiz

Which term describes a relationship where both organisms benefit?

• Parasitism

• Mutualism

• Commensalism

• Competition

What is the first stage of primary succession?

• Appearance of shrubs

• Arrival of pioneer species

• Growth of large trees

• Formation of soil

Which type of symbiosis involves one organism benefiting while the other is harmed?

• Mutualism

• Parasitism

• Commensalism

• Cooperation

What is an example of secondary succession?

• Growth of plants on bare rock after a volcanic eruption

• Forest regrowth after a wildfire

• Formation of a new island

• Moss growing on a new lava flow

Tags

NGSS.MS-LS2-4

Which of the following is NOT a type of symbiosis?

• Mutualism

• Parasitism

• Predation

• Commensalism

What is the main cause of primary succession?

• Flooding

• Formation of new land

• Forest fire

• Logging

Which organism is usually the first to colonize an area during primary succession?

• Large trees

• Pioneer species like lichens

• Mammals

• Birds

In commensalism, how is each organism affected?

• Both benefit

• One benefits, one is harmed

• One benefits, one is unaffected

• Both are harmed

Which event can lead to secondary succession?

• Glacier retreat

• Volcanic eruption creating new land

• Forest fire

• Formation of sand dunes

What is the final stage of succession called?

• Pioneer stage

• Climax community

• Shrub stage

• Soil formation