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Desert leaves are often thick with a waxy cuticle to save water; aquatic leaves are thin with air spaces to float; moist-habitat leaves are broad. Elders may point to leaves used as plates or insect repellents. While learning tribal dance steps, note how the hinge joints (knees, elbows), the ball-and-socket joints (shoulders, hips) and the pivot joint (neck) all work together, and build a short drama showing these movements.
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Will it be possible to obtain a complete animal from an animal cell like plants? If yes, what would be the advantages and challenges of this development?
It may become possible through advanced cloning and stem-cell methods. The advantages could be saving endangered animals and producing tissues for treatment; the challenges include the difficulty that most animal cells are not totipotent, plus serious ethical and safety concerns.