Take an interactive quiz over the classification of living things. After completing the quiz, check your score, and then revisit any incorrect question for further review.

A lesson plan that takes young scholars through the process of organizing a set of biological picture cards according to levels of complexity.

An explanation of how living organisms are named and the importance of naming them accurately.

Information about the orangutan: its scientific classification, physical features, reproduction, behavior, diet, habitat, threats to its survival, and efforts being taken to protect it. (Published: August 7, 2010)

Article explaining the basic characteristics of mammals, their diet, reproduction, behavior, conservation concerns, taxonomy, and their evolution. (Published: September 23, 2010)

[Free Registration/Login may be required to access all resource tools.] Discusses how fish are classified.

Describes roundworm characteristics, including their classification, habitat, reproduction, infection of humans and pets, and how they are transmitted to other hosts. Includes some examples and the diseases they cause.

What is the role of the toxicologist in a forensic investigation? In this comprehensive interactive tutorial explore how drugs are analyzed and what their results indicate within a forensic laboratory. Discover what laws govern the use...

One way plants have been classified has been based on the number of cotyledons in the seeds. The differences between monocots and dicots are listed along with some helpful facts.

Describes the characteristics of Archaea, Bacteria, and Eukarya, the three domains of life.

A short overview of the six kingdoms in our scientific classification system: Plants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria. A good explanation of how organisms are placed in their particular kingdom.

A short overview of the six kingdoms in our scientific classification system: Plants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria. A good explanation of how organisms are placed in their particular kingdom.

A short overview of the six kingdoms in our scientific classification system: Plants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria. A good explanation of how organisms are placed in their particular kingdom.

A short overview of the six kingdoms in our scientific classification system: Plants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria. A good explanation of how organisms are placed in their particular kingdom.