I don't understand Punnent Squares

Depending on the organism the number of in a cell may change

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils