Which of the following describes a difference between galaxies and solar systems?
Galaxies contain only moons, while solar systems contain planets.
Gravity holds solar systems in orbits but does not exist between stars in galaxies.
A galaxy is a collection of millions of stars, while a solar system is a star and the planets around it.
It's easier to use astronomical units to measure distances in the galaxy but use light years for measurements in a solar system.

BRAINLIST AND THX IF CORRECT

A galaxy is a collection of millions of stars, while a solar system is a star and the planets around it.

Explanation:

You live in a solar system, we revolve around our sun and so do the other planets making up a solar system

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".