Groups of cells that work together to perform a specific function within an organism
Types of tissues
epithelial
connective
muscular
nervous tissue
Organisms
Living things that pass characteristics such as respiration, reproduction, growth and response to stimuli
Types of organisms
plants
animals
fungi
protists
bacteria
Organs
Also known as organology, the study of structure, function and disorders of the various organs that make up the human body
Cells
The fundamental units of life, the building block that makes up all living organisms
Organ system
A collection of organs that work together to perform a specific function or set of functions within the body
Organelle
A specialized structure within a cell that performs a specific function, such as the microndia for energy production or the nucleus for storing genetic material