Multiple Cell Diagram with Labels: A diagram showing multiple cell types with labels often includes a variety such as nerve cells, muscle cells, blood cells, and epithelial cells, each with unique shapes and structures suited to their function. Nerve cells have long axons for signal transmission, muscle cells have fibrous structures for contraction, red blood cells are biconcave for efficient gas transport, and epithelial cells line surfaces for protection and secretion. This comparative diagram helps learners understand the diversity and specialization in multicellular organisms.