Which statement describes the system of orbits from smallest to largest? a. universes orbit galaxies that orbit solar systems.
b. stars orbit planets that orbit moons.
c. solar systems orbit galaxies that orbit the universe.
d. moons orbit planets that orbit stars.

D. Moons orbit planets that orbit stars.

 is the statement describes the system of orbits from smallest to largest.

The correct answer is - d. Moons orbit planets that orbit stars.

The stars are the center of a galaxy, its biggest body, and the one that has the biggest gravitational pull. Big portion of the stars have planets around. The planets are much smaller than the stars and have much less mass, thus their gravitational pull is smaller too. Because of this the planets are under the influence of the gravitational pull of the stars and they orbit around them. Very often the planets have moons/natural satellites. The moons are much smaller than the planets and their mass is smaller as well, which leads to their gravitational pull being smaller as well. Because of that, the moons orbit around the planets, which are the closest body that has much bigger gravitational pull then them.

So we have the situation where the smallest of all, the moons, orbit around the planets that are bigger then them, and the planets orbit around the stars that are much bigger than them.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.