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Model Systems and Biological Hierarchy

Across
An example would be a pond with fish, plans, bacteria, etc.
A model system is a ____ organism or a cell type used for conducting experiments.
The smallest unit of an element.
A prokaryote model system that is commonly found in ground beef and makes you sick.
Proteins, carbohydrates, lipids.
Bone, muscle, nerve, etc.
Includes all levels of biological hierarchy.
Smallest unit of life.
Down
Tissues combine to make ____.
You are part of the human ____.
A unit made up of atoms.
Many studies have used this animal as a model system. For example, Fredrick Griffith used it to studied strands of pneumonia.
Mitochondria is a(n) ______.
An example of one would be the Sahara Desert.
A collection of communities.