Communicate investigations and explanations. Animals A. Characteristics of Organisms 1. Organisms have basic needs. Animals need air, water, and food. Identify the basic needs of animals, including shelter and living space.
Organisms can survive only in environments in which their needs can be met.
Describe the relationship between animals and their habitats. B. Life Cycles of Organisms 1. Animals have life cycles that include being born, developing into adults, reproducing, and eventually dying. Observe and describe the growth and development of animals throughout their life cycles. Observe growth in animals over time.