[Free Registration/Login may be required to access all resource tools.] The life cycle of a plant is very different from the life cycle of an animal. Humans are made entirely of diploid cells (cells with two sets of chromosomes). Our...

[Free Registration/Login Required] This flipchart is set up to either teach or review the life cycles of humans, butterflies, frogs, and ducks.

PetCoach offers a full description of hookworms, a common intestinal parasite often found in dogs and cats but with the ability to infect humans. Content explores the life cycle of hookworms, the signs and symptoms of a hookworm...

In this whiteboard lesson, students explore the stages of human life and draw comparisons with different animals. A variety of diagrams are provided to help communicate this concept.

This resource provides a table with information on human physical, emotional, and social development from birth to age five.

Lots of information about the black carpenter ant. Learn about their physical characteristics, colonies, life cycle, food sources, and predators. A detailed chart listing many plants and animals permits exploration of their relationships...

Use this tutorial to enhance your understanding of how the human immunodeficiency virus invades healthy cells of the immune system. [3:15]

[Free Registration/Login Required] Through this unit, children learn that plants and animals reproduce as part of their life cycle and that in every life cycle there are distinct processes and stages. They should begin to understand how...

[Free Registration/Login may be required to access all resource tools.] The process of cell division in eukaryotic cells is carefully controlled. The cell cycle is the life cycle of a cell, with cell division at the end of the cycle....

Article explaining the importance of carbon as the basis for life, carbon dioxide's role in photosynthesis and respiration, carbon in the ocean and lithosphere, the impact of human activities on the carbon cycle, carbon that seems to be...

Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.

In this activity, students investigate the life cycle of an engineered product and how the product impacts the environment. They analyze a product using a simple life cycle assessment that assigns fictional numerical values for different...

By exploring the body of a boy or girl, this interactive helps the learner discover how the body changes during puberty. Click the hotspots on the child to get more in-depth information, then click on the adult to see the results.

Learn about viruses of humans and other animals, the Baltimore classification system, and the HIV life cycle.

This landing page includes learning modules on the following topics of: animals, plants, microorganisms, life cycles and reproductions, food chains, habits, humans and the environment, adaptation, inheritance, and evolution.

This collection of six images captures the magnificence of human development -- the transformation from baby to woman.

Students learn what insects are, how they live, how they find food, how they defend themselves, and how they affect humans. Organized into several articles accompanied by high-quality photos and video, this online exhibit provides...

Students will learn about some characteristics of different age groups, including mobility and what they eat.

A brief explanation of life cycle is provided along with pictoral respresentations of three different examples of life cycles (apple tree, butterfly and frog). The term metamorphosis is introduced and the resouce has an interactive...

Learn about the element carbon and its importance on the Earth's atmosphere and sustainability of life on the planet. Additionally, understand the role the carbon cycle plays in global climate change over time.

[Free Registration/Login may be required to access all resource tools.] The first year after birth is called infancy. Infancy is a period when the baby grows very fast. During infancy, the baby doubles in length and triples in weight....

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.

This database includes life cycles, images, and diagnosis information for several parasites that can infect humans. The search does work better using scientific names.

Explore the human body's need for a normal cycle of dark and light and apply this to an understanding of biological clocks in other animals. Test the effect of light on the development of mealworm larvae into adults.