Fish and crustaceans are similar in that both use for gas exchange.

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

Is this mrna or rna need need the answer in a hurry