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

Which is an example of a renewable energy resource?

Which will most likely result if there is increased upwelling in a coastal area?

Which best determines the health of a lake used as a source of freshwater?

Why do doctors suggest that people get a flu vaccine each year?

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

Which of these careers would a student studying biotechnology most likely pursue?

Which best determines the number of wolves that can live in an area?

What happens to a population and to competition when there is a reduction of living space?

What happens to the energy in a food chain as you increase up the trophic levels?

What do transitional fossils best support?

Which best explains the importance of nitrogen in the cycling of energy and matter?

Which is a way the agricultural biotechnology industry could have a positive impact on the environment?

Scientist think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?

What would best allow a species to survive environmental changes?

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

Which factors can have the greatest effect on the health of a river system?

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

Which of the following is a source of genetic variation within a species?

Where is most of Earth's freshwater?

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