To control what goes in and out of the cell
D.
The block of wood does not stop moving at any time as shown on the chart, so the answer can't be A. or C. and the speed is not increasing so it can't be B.
Air that moves horizontally between high and low pressure zones makes wind. The greater the pressure difference between the pressure zones the faster the wind moves. Convection in the atmosphere creates the planet's weather.
Hope that helps:)
Answer:
A deletion mutation can remove a single nucleotide, or entire sequences of nucleotides. ... If three or more nucleotides are lost in a gene, entire amino acids can be missing from protein created which can have serious functional effect.
