A. All living things share certain characteristics.
B. The scientific theory of cells, also called cell theory, is a fundamental organizing principle of life on Earth.
C. Life can be organized in a functional and structural hierarchy.
D. Life is maintained by various physiological functions essential for growth, reproduction, and homeostasis.
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Original Student Tutorial
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Original Student Tutorials Science - Grades K-8
Learn how to identify explicit evidence and understand implicit meaning in a text.
You should be able to describe the hierarchical organization of living things from the atom, to the molecule, to the cell, to the tissue, to the organ, to the organ system, and to the organism.
Student Resources
Original Student Tutorial
Learn how to identify explicit evidence and understand implicit meaning in a text.
You should be able to describe the hierarchical organization of living things from the atom, to the molecule, to the cell, to the tissue, to the organ, to the organ system, and to the organism.
Type: Original Student Tutorial
Video/Audio/Animation
This site explores the relationship of the size of the cell and many other common objects, molecules, and atoms. It is an interactive website that shows the scale of the objects in relations to each other.
Type: Video/Audio/Animation