What 3 molecules, bonded
together, create a single link in the DNA chain

nucleotides, phosphate, sugar (for a better explanation go to google and that should help you! I hope this helps you)

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.