Invertebrates are animals that do not have a backbone or spinal column. They make up about 97% of all animal species on Earth and are found in a wide range of habitats, from the depths of the ocean to the highest mountains.
Invertebrates are classified into several groups based on their characteristics. The major groups of invertebrates include:
Despite their diversity, invertebrates share some common characteristics:
Invertebrates play crucial roles in ecosystems and have significant ecological and economic importance. They serve as pollinators, decomposers, food sources, and contribute to nutrient cycling in various ecosystems.
When studying invertebrates, it's important to focus on their diversity, characteristics, and ecological roles. Here are some key points to include in your study guide: