Ok so i know the answer is b but can someone tell me why it is correct plz!

how far is the earth from the sun?
a: 1 parsec

b: 1 au

c: 1 kiloparsec

d: 1 light-year

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation

Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples

18. how do the cells in meiosis differ from the cells in mitosis?