How do groups of organs assemble and work together to make an organism? A. They form organ systems B. they form groups of cells C. they form other organs D. they form an ecosystem

A.They form organ systems is the correct answer.

Explanation:

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.