AP BIOLOGY

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 major function of the reproductive system is to ensure survival of the species. Other systems in the body, such as the endocrine and urinary systems, work continuously to maintain homeostasis for survival of the individual.

Detailed explanation-3: -Organism. An organism is the complete living system capable of conducting all of life’s biological processes.

Detailed explanation-4: -The circulatory system is made up of the heart, blood vessels and blood. These all work together to serve as a system of transport for important molecules and substances traveling through the blood.

Detailed explanation-5: -The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.