Mod 1: Levels of organization of the human organism
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12 Terms
What’s is an element?
A unique substance which all living and non living things are made of.
What is an atom?
Smallest unit of an element.
What is a molecule?
A combination of atoms.
What is a cell?
Smallest independent thing in a living structures. Made of many different molecules.
What is an organelle?
Tiny organ like structures inside a cells outer cell membrane. They sit in a jelly like substance.
What is a tissue?
A group of similar cells that work together to preform a particular function.
What are the four main tissue types in humans?
Muscular
Epithelial
Nervous
Connective
What is an organ?
An identifiable structure of the body composed of two or more tissue types.
What is an organ system?
A group of organs that work together to preform a specific function.
What is an organism?
The most complex level of organization of organ systems that work together to preform the functions of an independent individual.
What is the hierarchical levels of organization for the human body? Smallest to largest.
Chemical
Cellular
Tissue
Organ
Organ system
Organism