Community and Ecosystem Ecology

What type of species interaction is the following: two bears fighting over the same mate. 

• predation 
• mutualism 
• competition 
• parasitism 

What type of species interaction is the following: a killer whale kills and eats a seal. 

• commensalism 
• predation 
• mutualism 
• competition 

_______ is when 2 or more species live in close association. 

• predation 
• competition 
• symbiosis 
• food web 

Name the species interaction: a bee and flower both benefit from their relationship. 

• commensalism 
• mutualism 
• parasitism 
• competition 

Name the species interaction: a mosquito feeds on human blood & transfers a disease. 

• competition
• parasitism 
• predation
• mutualism 

Name the species interaction: A decorator crab camouflages itself with sponges. Sponges are unaffected. 

• competition 
• predation
• commensalism
• mutualism 

Name the type of succession in which some life is left after a disturbance. 

• primary sucession
• secondary succession
• tertiary succession
• quaternary succession 

Primary succession would occur in an area when:

• Volcanic eruptions result in a surface of hardened lava.
• Fire wipes out all organisms in an area.
• A flood occurs.
• A forest is bulldozed by humans.

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

The living portions of the ecosystem.

• Biotic factors
• Abiotic factors