Choose the list that is correct in order of size from largest to smallest.
A) amino acids, genes, carbon dioxide, DNA
B) genes, amino acids, DNA, carbon dioxide
C) carbon dioxide, amino acids, genes, DNA
D) DNA, genes, amino acids, carbon dioxide
E) DNA, genes, carbon dioxide, amino acids
Question 2
Which of the following is true about the ages and masses of spiral and elliptical galaxies?
A) Ellipticals are all older and more massive than spirals.
B) Spirals are older, and much more massive than ellipticals.
C) Both types are about the same age, but spirals vary less in mass.
D) Spirals are younger and much more massive than any elliptical.
E) Ellipticals are older, and show a far wider range of masses than do spirals.
Relatively simple changes in Hox genes control limb formation in tetrapods.
Sexual dimorphism in body size and mating system.
Amino Acids Nails
Key anatomical features of Homo habilis include reduced facial size, a parabolic palate, and some br
Acidic Amino acids and their Amides
Proteins Are Made of Amino Acids