refers to a cluster of antisocial behaviors which include family dysfunction, substance abuse, smoking, precocious sexuality and early pregnancy.

Juvenile delinquency

Explanation:

This involves a minor committing illegal activities such as theft , burglary etc. This is usually caused by socio-economic problems, peer pressure, abuse of drugs. Such minors are called Juvenile delinquents and aren’t often prosecuted as they are below the ages set for prosecution and are usually put through therapy or correctional homes.

Problem Behavior Syndrome (PBS)

Explanation:

Problem behavior syndrome is a set of antisocial behaviors that is more pronounced among adolescents, which involves risk-taking behaviors or problem behaviors such as alcohol use, delinquency, violence, truancy, substance abuse etc. Problem Behavior Syndrome is said to be influenced by perceived–environment, personality, behavior systems.

lymphocytes

Explanation:

In immune system, there are three main group of cells that is the response of our defenses.

Neutrophils are one group responsible to be the first response, they travel all around our body trough the stream blood and can detect the first signals of infection.

Monocytes and macrophages, are another group of cells that can "eat" the bacteria or viruses and destroy them when they are inside our body.

The third group, the lymphocytes, are conformed by three group of cells, T - cells (that help to destroy infected or cancerous cells), B- cells (responsible to produce antibodies, so they are the ones that conformed our second barrier of defense) and the NK cells ( natural killers, the ones to control several types of cancer and microbial infections).

Hope this info is useful.