Perform very different roles
Analyze the characteristics, structures, life cycles, and environments of organisms.
Describe the structural and functional relationships among the cells of an organism.
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Recognize that cells vary greatly in size, structure, and function, and that some cells and tiny organisms can be seen only with a microscope.
Examples of organisms as single-celled or multi-celled
Differences between plant and animal cells
Identify and describe the purpose of the digestive, nervous, skeletal, and muscular systems of the body.
Function of the major parts of body systems (nervous, circulatory, respiratory, digestive, skeletal, muscular) and the ways they support one another