Cell - Smallest unit of life; has a membrane separating it from the outside world, Tissue - A group of cells working together on a specific function, Organ - A collection of tissues performing a specific function, Organ System - a group of organs performing a specific function, Organism - a living organism made up of organ systems, organs, tissues, and cells,

Levels of Organization

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?