Which list contains only things that are part of our solar system?
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OPTIONS:
- planets, moons, comets
- galaxies, quasars, asteroids
- black holes, novas, stars
- clusters, asteroids, meteors

planets, moons, comets

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

Which of the following is the primary advantage of sexual reproduction when compared to asexual reproduction?
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OPTIONS:
- There is a greater number of offspring.
- There is more food available to offspring.
- There is greater genetic variety in offspring.
- There is a longer development time for offspring.
There is greater genetic variety in offspring.