Positron Emission Tomography scan of the brain of cocaine addicts showed that the drug affects how the brain use glucose. Cocaine users' brain cannot use glucose efficiently and there are also reduced metabolic activity in other areas of the brain.
A, the others are unrealistic speeds.
<span>Proteins make DNA which then creates RNA.</span>
<span>The question says, the corn we eat today is larger and has more kernels than the corn people first grew thousands of years ago. Which process is most likely responsible for the changes that have occurred. The correct option is 'succession'. Succession is the process by which change occur in the composition, structure or architecture of a specie over a period of time.</span>
Could you add the picture please?
