Are spiders related to crabs? Study the order of arthropods with a reading selection about animal diversity. It provides details about each class within the order, as well as vivid pictures and explanatory charts. 

Learn the system that scientists use to classify living things.

Use the scientific reasoning and critical thinking to take an in-depth look at the basics of biology.

Understand the behaviors, characteristics, and classification of fungi.

Understand the behaviors, characteristics, and classification of jawless fish.

Explore the behaviors, characteristics, and classification of fish.

Understand the behaviors, characteristics, and classification of echinoderms.

Understand the behaviors, characteristics, and classification of insects.

Understand the behaviors, characteristics, and classification of arachnids.

Understand the biological diversity and classification of invertebrates.

Explore the characteristics and classification of fungi.

Explore the behaviors, characteristics, and classification of cnidarians.

Understand the behaviors, characteristics, and classification of echinoderms.

Understand the behaviors, characteristics, and classification of mollusks.

Understand the characteristics, diversity, and classification of mollusks.

Understand the behaviors, characteristics, and classification of arthropods.

Detailed information about each of the five kingdoms. Each kingdom is separately described, but information is also summarized in a table.

Discover the diversity of plants.

A lesson on the classification of mosses and liverworts as well as the physical make up and similarities of the species.

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