The correct answer is gliding joint.
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A gliding joint or a plane joint is a type of synovial joint formed between bones that meet at flat or nearly flat articular surfaces. These joints allow the bones to glide past one another in any direction along the plane of the joint (twisting, turning, and sliding). </span>
All animals are heterotrophs as in they can't produce their own energy like plants can which is why they are autotrophs. Herbivores eat plants, carnivores eat animals, and omnivores (humans) eat both.