Spiral Review #5

Which best describes the relationship between temperature and dissolved oxygen in a lake?

•    A. As temperature increases, dissolved oxygen increases.

         

         

        

•  B. As temperature increases, dissolved oxygen decreases.

•  C. As temperature decreases, dissolved oxygen decreases.

•   D. A change in temperature has no effect on dissolved oxygen.

Why are many fishing boats found near ocean upwellings?

• A. There is less vegetation there.

          

         

         

• B. The water is less turbulent there.

•  C. Many marine species gather there to eat the nutrients brought to the surface.

•  D. Upwellings are found in more shallow waters, so boats do not need deep anchorage.

Dead matter and waste would pile up without which type of organism?

• A. decomposer            

• B. consumer  

• C. producer

A wolf and a rabbit are an example of which ecological relationship?

•  A. predator/prey           

• B. cooperation 

• C. mutualism

Which would most affect the health of fish in a local pond?

•  A. The daily release of hot water into the pond from a local factory.

         

         

        

•  B. A storm temporarily stirring up water and sediments in the pond.

•  C. The occasional erosion of sediments into the pond from a nearby field.

•   D. A slight increase in the number of people who fish in the pond for food.

Which will best show lakes, rivers, and streams are healthy?

• A. large amounts of algae

          

         

          

• B. large amounts of nitrates

•  C. large amounts of decomposers

• D. large amounts of dissolved oxygen

By which method have scientists determined that the Earth is about 4.5 billion years old?

•  A. plate tectonics

         

        

          

•  B. relative dating

•   C. radioactive dating

• D. law of superposition

Which statement about parasitism is most true?

•  A. Both organisms benefit. 

      

       

•  B. Both organisms are negatively impacted.

• C. One organism benefits and the other is negatively impacted.

 “Lions are predators to antelopes in many African ecosystems.” Which is best being described?

•  A. a population shift         

•   B. an abiotic factor  

• C. the lion’s niche

Which are the most abundant dissolved gases in ocean water?

•  A. nitrogen and carbon dioxide

         

          

          

•  B. oxygen and carbon dioxide

• C. oxygen and methane

• D. nitrogen and sulfide