Adenine (a) cytosine (c) guanine (g) thymine (t) uracil (u) dna can make exact copies of itself through replication because the nitrogen bases always pair a) a-t and c-g. b) a-u and c-g. c) a-c and t-g. d) c-g and t-u.

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Nh3 +02-no + h20 is unbalanced what is the balanced equation

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi