Explains in detail what the lytic and lysogenic cycles of a virus are and the stages of each cycle. Also presents a table highlighting the differences between them.

This site created by NatureWorks reveals the natural history of the Marbled Godwit, a North American shore bird. The content of this resource includes a look at this species' characteristics, range, habitat, diet, life cycle, and behavior.

[Free Registration/Login Required] A lesson in which learners learn to use a glossary to determine the meanings of unfamiliar words. Lesson utilizes the book The Life Cycle of an Emperor Penguin by Robin Johnson and Bobbie Kalman and...

Describes types of flatworms that are parasitic to humans and animals and what their life cycle looks like. Two or more hosts are needed for them to complete their life cycle.

Information about mealworms, including types, habitat, physical characteristics, using them as pet food, raising them, whether they can be pests, their role in the life cycle of the darkling beetle, and a list of quick facts about them.

This article introduces various species of salmon, breaking them into two groups - Pacific and Atlantic Salmon. Salmon habitat and life cycle are described. Concepts of spawning and food chain are explored. The issues of human activities...

This resource explains how the alternation of generations occurs in a plant's life cycle where sporophytes and gametophytes each play a role in plant reproduction.

You can find out the conditions for a thunderstorm, the life cycle, types, and wall clouds.

Description of the Natterjack Toad, including how to identify it, and its life cycle. It also provides a video [6:06] of an edition of the Living World with Lionel Kellaway, focussing on the natterjack chorus.

[Free Registration/Login Required] This is a instructional activity in which students learn to use context clues in surrounding sentences to determine the meanings of unfamiliar words. The instructional activity utilizes the book The...

Zoo site highlights the Barn Owl. Provides a brief description as well as additional information such as classification, range, life cycle and more.

Resource features the Rattlesnake. Provides a brief description as well as additional information on its classification, range, life cycle and more.

Begin to understand the teen age group looking at its place on the growth sequence. Learn that adoelscence, being the last step before becoming an adult brings many changes and challenges.

First Come the Eggs, a picture book for young readers, was created by 3rd grade students in Rochester, New York. This is a biography of Seth Green, the father of fish hatcheries in America. The research included the study of the life...

Get to know the Peary Caribou.. colored photos, description, life cycle, map of habitat, food. Only the basic details of this animal are given, making it a perfect site for younger researchers.

Get to know the Killer Whale.. colored photos, description, life cycle, map of habitat, food. Only the basic details are given, making this site perfect for younger researchers.

Get to know the Orangutan.. colored photos, description, life cycle, map of habitat, food. Only the basic details of this animal are given, making this site perfect for younger researchers.

Describes the characteristics of Platyhelminthes, or flatworms, and how they reproduce.