Nicotine ultimately stimulates which are implicated in the reinforcing effects of smoking. muscarinic receptors dopamine receptors gaba receptors serotonin receptors

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.