Select all of the following substances that can be addicting. cigarettes
chewing tobacco
legal drugs
illegal drugs
alcohol

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Vertebrates have this type of circulatory system: wut i it owo

Enzo sits with a small group of friends at lunch. lately, he has been very quiet and stays home a lot even though his friends invite him to go places. he likes to play video games in his free time and is slightly overweight. which behavior is a sign that enzo may need professional mental health treatment? a) being overweight b) playing video games c) withdrawing from activities d) having a small group of friends

The part of the nephron provides initial filtering of the blood in the urinary system.