Which statements are true regarding the effects of marijuana use? (Select all that apply.)

Question

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With marijuana smoking,approximately 50% of the potent agents are absorbed through the lungs; when marijuana is ingested,however,only 10% is absorbed.With heavy marijuana use,the following adverse effects have been reported: (1)alterations of sensory perceptions,cognitive and psychomotor impairment (e.g.,inability to judge time,speed,distance); (2)smoking three or four joints per day is similar to smoking 20 cigarettes per day,in relation to the frequency of chronic bronchitis and may contribute to lung cancer; (3)data from animal studies only,indicate reproductive changes that include reduced fertility,decreased sperm motility,and decreased circulatory testosterone; (4)fetal abnormalities including low birth weight and increased frequency of childhood leukemia; (5)increased frequency of infectious illness,which is thought to be the result of depressed cell-mediated and humoral immunity.

Which Statements Are True Regarding the Effects of Marijuana Use