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.

that scientist would be robert hooke

cells spend most of their time in interphase