Animal Science: Exploring the Animal Kingdom

Welcome to our study guide on animals! In this guide, we will explore the fascinating world of animals, including their classification, characteristics, and the role they play in the environment.

Classification of Animals

Animals are classified into different groups based on their characteristics. The classification system includes the following levels:

• Kingdom: Animalia
• Phylum: Chordata (for animals with a backbone) or other phyla for invertebrates
• Class: Mammalia, Aves, Reptilia, Amphibia, or other classes
• Order, Family, Genus, and Species

Characteristics of Animals

Animals share several key characteristics:

• They are multicellular organisms
• They are heterotrophic, meaning they obtain nutrients by consuming other organisms
• They have specialized tissues and organs
• They typically have the ability to move, either by walking, flying, swimming, or other means

Roles of Animals in the Environment

Animals play important roles in the environment, including:

• Pollination of plants by insects and birds
• Contribution to nutrient cycling through activities such as grazing and decomposition
• Regulation of prey populations by predators
• Supporting food webs and ecosystems

Study Guide Questions

1. What are the key levels of classification used for animals?
2. What are the key characteristics that all animals share?
3. How do animals contribute to the environment?
4. Provide examples of different animal species and their roles in the ecosystem.

Now that you have a better understanding of the world of animals, take some time to explore the diversity of animal life and the important roles they play in our world!