In this food web relationships learning exercise, students click on the links to learn about the food web relationships in the wetlands and answer short answer questions about it. Students complete 8 questions total.

In this online interactive English vocabulary skills worksheet, students respond to 13 multiple choice questions that require them to fill in the blanks in sentences with the appropriate prepositions.

Students compare characteristics of myobacteria and viruses to determine which is the smallest life form. They read and discuss an article that presents different viewpoints on the definition of life to determine their own viewpoint.

In this fungus non-fiction reading comprehension worksheet, students read a 3 page selection that describes the characteristics and life of fungi. They answer 10 questions based on the reading which include true or false, multiple...

Ninth graders examine the three worm phyla. In this classification instructional activity, 9th graders observe, compare and contrast the planarian, tapeworm, and fluke.

Learners investigate the use of restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. They utilize restrictive endonucleases to cut Thymus DNA and compare results by viewing the DNA fragments on Agarose Gel...

Students perform a lab to becoe familar with scientific concepts. The skill of inquiry is essential and this lesson furthers its development. The intelligence of kinesthetics is used as learners perform the many aspects of this lab...

Students learn how viruses invade host cells and hijack the hosts' cell-reproduction mechanisms in order to make new viruses, which can in turn attack additional host cells. Students also learn how the immune system responds to a viral...

Read about cutting-edge research on bacterial pathogens from the Stanford University. Then view movies showing how these pathogens invade their hosts. The introduction for the non-biologist is very helpful.

Students read an article about how the HIV virus replicates itself in a host cell, and the parts of an HIV particle. Includes labeled drawings of an HIV particle and of its replication cycle. The instructional activity materials and a...

Get an inside look at how viruses reproduce in a host cell in this tutorial. Tutorial explores both the lytic and lysogenic cycle.

View a colorful 3-D diagrams of viruses and learn about how their structure helps them infect plants, animals, and bacteria.

A brief overview of viruses from the University of California. Discusses the difference between the lysogenic phase and the lytic phase, gives examples of viral diseases, and provides information on the relationship between viruses and...

Learn about the different ways genes can be inserted into a host cell in this narrated lesson. Lesson explains the techniques of transformation and transfection. [2 min, 9 secs]

Are you looking to learn the basics of web page design with Microsoft FrontPage 98? This fun and educational tutorial offers interactive activities and quizzes. The tutorial covers: introduction to FrontPage, creating your first website,...

Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he's managed to cure...