The functioning and health of organisms, including humans, are influenced by heredity, diet, lifestyle, bacteria, viruses, parasites, and the environment. Certain body structures and systems function to protect against disease and injury. Sanitation measures such as the use of sewers, landfills, quarantines, and safe food handling are important in controlling the spread of organisms that cause disease. Investigate the impact of improved sanitation measures on the health of the local population using a full range of community resources such as guest lecturers, field trips, libraries, and community agencies. Cells are the fundamental structural and functional units of all living organisms.
Cells take highly varied forms in different plants, animals, and microorganisms.
Structural variations among cells determine the function each cell performs. The following sample activity applies to this content statement. The highly specific function of each organelle is directly related to its structure. Use microscopes to observe cells from a variety of organisms. Discuss the relationships between cellular structure and function.