Throughout time, plants and animals have changed depending on their environment. In learning how organisms have been successful in their habitats, students should observe and record information about plants and animals. They should begin to recognize how differences among individuals within a species can help an organism or popu- lation to survive. Students at this level will identify the behaviors and physical adaptations that allow organisms to survive in their environment.
3.1b Eachplanthasdifferentstructuresthatservedifferentfunctionsingrowth, survival, and reproduction.
• roots help support the plant and take in water and nutrients
• leaves help plants utilize sunlight to make food for the plant
• stems, stalks, trunks, and other similar structures provide support for the plant
• some plants have flowers
• flowers are reproductive structures of plants that produce fruit which contains seeds
• seeds contain stored food that aids in germination and the growth of young plants