Curated OER
Cell Structure and Function
In this cell worksheet, students chart the function of various cell structures. Students list the organization of a multicellular organism and illustrate plant and animal cells.
Encyclopedia of Earth
Encyclopedia of Earth: Evolutionary Biology: Organism
Article explaining what organisms are, their cellular foundation, and how they get their energy and nutrition. (Published: May 26, 2010)
CK-12 Foundation
Ck 12: Organization of Cells
[Free Registration/Login may be required to access all resource tools.] Discusses how cells are organized in living things and explains the origin and significance of multicellular organisms.
CK-12 Foundation
Ck 12: Organization of the Human Body
[Free Registration/Login may be required to access all resource tools.] A variety of learning opportunuties about levels of organization in the human body. Includes videos, activities, discussion questions, and quizzes.
Khan Academy
Khan Academy: Introduction to Development
How does an organism go from a single cell to something as complex as a frog, fly, or human being? Learn the basic principles of development.
CPALMS
Florida State University Cpalms: Florida Students: Levels of Organization
FSERL: Explanation of the hierarchical levels of living things.
CPALMS
Florida State University Cpalms: Florida Students: The Cell Theory
Learn how the Cell Theory defines living organisms.
Biology 4 kids
Biology4 Kids: Animal Systems
An overview of the structure and function of a complex, multicellular organism. This article discusses levels of organization and examples of systems.
CK-12 Foundation
Ck 12: Life Science: 11.1 Human Body
Explore the levels of organization in the human body.
CK-12 Foundation
Ck 12: Life Science: 2.3 Cell Theory
Learn about the cell theory and levels of organization in a multicellular organism.
Other
Principia Cybernetica Web: Multicellular Organisms
Learn about the transition from unicellular to multicellular organisms. Includes related sources.
BiologyWise
Biology Wise: Multicellular vs. Unicellular Organisms
Describes the characteristics of unicellular and multicellular organisms and gives examples for each.