How do i get a girl to like me im 14 btw

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?