Final answer:
2. Prosocial behaviors are voluntary actions intended to benefit others, encompassing altruistic behaviors, where an individual might reduce their own well-being to aid another's. This contrasts with aggressive behaviors that aim to harm.
Step-by-step explanation:
The behaviors that promote helpfulness, empathy, and concern for others while limiting aggression are referred to as 2. prosocial behaviors. These are voluntary behaviors with the intent to help other people. Altruistic behaviors are a subset of prosocial behaviors, where an individual's actions may lower their own fitness to increase the fitness of another.
For instance, a meerkat standing guard foregoes its own safety to alert the colony of danger, or a person going back into a burning building to rescue others, as was seen during the 9/11 attacks. Aggressive behaviors, on the other hand, seek to cause harm or pain to another person and are the opposite of prosocial behaviors.