Answer: Gravity
Explanation: Gas giants are larger and there for have a stronger gravitational pull.
the larger planets with greater gravitational pulls collected more satellites and therefore have more moons.
Answer: The cell membrane is selectively permeable.
Explanation: going thru last year notes
This isn't always the case and there is no reason it should be .Whether or not a trait is common has to do with how many copies of that gene version (or allele) are in the population. It has little or nothing to do with whether the trait is dominant or recessive. Let's take eye color as an example.