具体描述
- Supplements curricula in earth and environmental science.- Good resource for science projects and reports on freshwater habitats.- Vivid color photographs with lively captions to illustrate key concepts.- Includes list of organizations and print, video, and online resources for further investigation as well as a thorough glossary, index, and notes on research.- Good to sell with the other Watts Library Biomes and Habitats books.Grades 5-8 ScienceIII. Content Standard C Life Science3. Populations and ecosystems- Population consists of all individuals of a species that occur together at a given place and time. All populations living together and the physical factors with which they interact compose an ecosystem.- Populations of organisms can be categorized by the function they serve in an ecosystem.
