cells tissue organ and organ system Flashcards
cells
in biology the smallest unit that can perform all life processes
stem cell
unspecialized cells that are able to develop into many different types of cells
cell differentiation
the process where cells become different types of cells
tissue
a group of similar cells that perform a common function
organ
a collection of tissue that carry out a specialized function of the body
organ system
a group of organs that work together to perform body functions
organism
a living thing
homeostasis
steady internal condition when external conditions change
excretory system
removes solid liquid and gas wast materials from the body
respiratory system
exchange gases between the body and environment
circulatory system
in transports gases nutrients waste and other substances throughout the body
lymphatic system
removes excess fluid from around organs and produces white blood cells and absorbs and transports fats
immunity
there resistance to specific pathogens or disease causing agents
skeletal system
protects support helps the body move and stores minerals
muscular system
helps the body move
