Some living things consist of a single cell. Like familiar organisms,
they need food, water, and air; a way to dispose of waste; and an environment
they can live in.
NSES Content Standard C
Life Science: The characteristics of organisms Grades K-4, page 129 Organisms have basic needs. For example, animals need air, water, and food; plants require air, water, nutrients, and light. Organisms can survive only in environments in which their needs can be met. The world has many different environments, and distinct environments support the life of different types of organisms. NSES Content Standard C
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