Energy and Ecosystems Review

Kudzu vines grow by climbing and wrapping around trees.
Trees covered by kudzu can die because they are starved of sunlight.
 What type of relationship exists between the trees and the kudzu growing on them?

• competition
• mutualism
• parasitism
• predator-prey

Which is a problem with using wind turbines to produce energy?

• Wind turbines are efficient only in certain areas.
• Wind turbines occupy a small area of land.
  
• Wind turbines produce a large amount of energy.
• Wind turbines create a large amount of pollution.

Which would least likely have an impact on global climate changes?

• the amount of snow in the area each year
• the number of birds that live in the area
  
• the number of trees in the area
• the amount of food available in the area

Where do plants get most of the energy they need to live and grow?

• water
• soil
  
• air
• sunlight

If wolves prey on deer for food, what will most likely happen to the deer population if wolves are removed from an area where deer live?

• The population of deer will increase.
• The population of deer will decrease.
  
• The population of deer will remain the same.
• The population of deer will become extinct.

Which is an example of a renewable energy resource?

• biomass
• coal
  
• gas
• oil

Which is a possible disadvantage of using flowing water to produce electricity?

• ecosystem damage and loss of land
• reduced carbon dioxide emission
• only suitable for industrial use
• creates reservoirs

In a food pyramid, which best explains why the number of organisms decreases from one trophic level to the next?

• Consumers at the lower level require more energy than the top-level consumers
• Consumers at the top level require more energy than the lower-level consumers.
• The consumers are feeding on larger organisms that have less energy.
• The consumers are feeding on smaller organisms that have less energy.

Which of these organisms is a producer in a marine ecosystem?

• fish
• gull
  
• algae
• worm

Which are replenished more quickly than they are used?

• energy resources
• material resources
  
• renewable resources
• nonrenewable resource