Bio Unit 2/3 - Final Review

What do we call several different populations interacting in some way?

• Population
• Community
• Ecosystem
• Biome

What is the diagram that shows all feeding relationships possible with available resources in an ecosystem?

• energy pyramid
• food pyramid
• food chain
• food web

A remora hitches a ride with the shark. It gets a free ride unbeknownst to the shark.

• Parasitism
• Predation
• Commensalism
• Mutualism

Bees pollinating flowers is an example of:

• Predation
• Commensalism
• Mutualism
• Parasitism

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism
• commensalism
• mutualism

What happens during the process of nitrogen-fixation?

• Usable nitrogen is converted into unusable nitrogen

• Unusable nitrogen is converted into usable nitrogen

The downward movement of water through spaces in soil

• Percolation
• evaporation
• Precipitation
• condensation

What is the role of the pioneer species in Primary Succession?

• To kill any remaining organisms from before the disturbance

• To break down rock and rebuild soil

• To provide food for large animals

• To put fresh oxygen into the air

Succession type?

• primary succession

• secondary succession

• tertiary succession

• variable succession

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%
• 20%
• 80%
• 90%