AP PSYCHOLOGY

Detailed explanation-1: -Organs are grouped into organ systems, in which they work together to carry out a particular function for the organism. For example, the heart and the blood vessels make up the cardiovascular system.

Detailed explanation-2: -The human body has levels of organization which are cell, tissue, organ, organ system and organism. The cells work together for tissues, tissues work together to for organs and so on and so forth. All organ systems work together to make up the organism.

Detailed explanation-3: -But for others, the cells come together to form tissues, tissues form organs, organs form organ systems, and organ systems combine to form an organism.

Detailed explanation-4: -In the human body an organ is composed of various histological kinds of tissue that act together to perform a complex function. Cells tissues organs organ systems. An organ system involves a group of organs that play complex functions essential for the existence of an organism.