Biceps, a large muscle in the upper arm, Bones, the hard parts inside many animals that help give their body shape, Dissect, to take something apart to study it, Function, what something does, Joint, a part of the body where two bones come together and can bend, Model, a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with, Muscle, a part of the body that attaches to bones and allows the body to move, Observe , to pay close attention to something, Skeleton , all of the bones of an animal, including humans, Structure, the specific form and shape of something, System, a group of things that affect each other and function as a whole, Tendon, a part of the body that attaches muscle to bone.

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