What can a moving magnet in a coil of copper wire cause?
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OPTIONS:
- an electric current
- friction on wheels
- an increase in gravity
- a decrease in heat

an electric current

A forest is flooded when a natural dam breaks, leaving the forest floor under two meters of water. Which animal is most affected by the flooding?
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OPTIONS:
- a crow
- a rabbit
- a squirrel
- a butterfly

a rabbit

Which is the best evidence that cell division is occurring constantly in our bodies?
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OPTIONS:
- The body has to keep breathing around the clock.
- Active people often require more food than inactive ones.
- There are many different types of tissues in the human body.
- Human beings shed millions of
Human beings shed millions of