We are the most amazing organism of all living things who carries out some functions. The Organ Systems are interdependent, interconnected, and packaged processes that allow them to carry out activities to remain in the living condition. together in a relatively small space. Animals are complex organisms with systems and Activity 1 Name what kind of organ system is in the picture. Choose your answer in the box below. Muscular system
Skeletal system
Endocrine system
Respiratory system
Nervous system
Immune system
Digestive system
Circulatory system
Urinary system

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

answerambulatory;