Develop a model to describe how animals and plants are classified into groups and subgroups according to their similarities.
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Distinguish between living things and nonliving things.
vertebrates – mammals, birds, fish, reptiles, amphibians
invertebrates – insects, arachnids
Identify the living and nonliving components of an ecosystem.
Organize (e.g., compare, classify, and sequence) objects, organisms, and events according to various characteristics.