Which of the following is not a condition that must exist for reciprocal altruism to work? a. the behavior must not cost the individual much but be beneficial to the intended recipient b. the individuals involved in the reciprocal altruism must be able to recognize one another c. there is a likelihood that the favor will be returned d. there is a preset amount of individuals involved in the behavior

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

Which word can describe a person's gender identity? a) female b) intersexual c) asexual d) androgynous

Mark's girlfriend dropped him off at a party, and then she went to visit her best friend two blocks away. when mark called his girlfriend to get a ride home, he could tell she had been drinking. what is mark's best plan of action? ride home with someone else and let his girlfriend drive herself get a friend to take him to his girlfriend's car so he can drive them both home ask his girlfriend to drive to the party, and then mark will drive them both home let his girlfriend drive them home slow to avoid getting pulled over