7.ls.4 cell,tissue , organ and organ system Flashcards
Cells
in biology , the smallest unit that can perform all life process
Stem cells
Unspecialized cells that are able to develop into many different types of cells
Cell differentiation
The process where cells become types of cells.
Tissue
A group of similar cells that performs a common function
Organ
A collection of tissues 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.
Nervous System
A group of organs and specialized cells detect process and respond .
Digestive System
A group of organs working together to convert food into energy and basic nutrients to feed the body.
Lymphatic System
Removes excess fluid from around organs and produces white blood cells and absorbs and transports fat.
Immunity
The resistances to specific pathogens or disease-causing agents
Skeletal System
Protects internal organs , provides support , helps the body move , and stores minerals .
Muscular System
Helps the body moves.
Homeostasis
Steady internal conditions when conditions.
Excretory System
Removes solid , liquid, and gas waste materials from the body.
