Levels Of Organization
Life is organized into 5 levels:
Cells: the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
Tissues: any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
Organs: a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
Organ systems: an organ system is a group of organs that work together to perform one or more functions.
Organisms: the material structure of an individual life form.
Populations: a particular section, group, or type of people or animals living in an area
Ecosystems: a biological community of interacting organisms and their physical environment.