Which of the following describes our current solar system model? planets revolve around a star, and moons revolve around planets. planets and moons all revolve directly around a star. planets, stars, and moons wander aimlessly in the universe. planets revolve around a star and moons wander throughout the solar system.

The planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune revolve around the sun (a star), and these planets have moons that revolve around them.

Planets revolve around a star, and moons revolve around planets.

Hope this helps.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: