D.<span> layers of porous rock or sand
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Answer:
Esquema del Sistema Nervioso Central humano. Se compone de dos partes: encéfalo (cerebro, cerebelo, tallo encefálico) y médula espinal. Los colores son con fines didácticos. El sistema nervioso central es una de las porciones en que se divide el sistema nervioso.
Explanation:
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Answer: only one amino acid in the sequence changes
Explanation: if you change both sequences given to rna sequences in the first one all the amino acids you get are serine. in the second sequence of you change them to rna then do the chart they all are serine but one which is phenylalaine.
The largest animal in the world is the blue whale