Plants roots display positive gravitropism which means they grow in the direction of gravity
Out of the choices given, the mechanisms that drives evolution is natural selection. The correct answer is B, natural selection.
The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.
The fluid in which organelles of the cell reside. This water can be used to assist in chemical reactions within the cell.
