https://www.khanacademy.org/science/grade-4-science-pakistan-national-curriculum/xd6642c7f392cd435:animal-structure-and-function/xd6642c7f392cd435:exoskeleton-and-endoskeleton/v/important-functions-of-the-skeleton-introductory 2026-07-02T12:10:59.912898911Z Important Functions of the Skeleton - Introductory Important Functions of the Skeleton - Introductory Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Important Functions of the Skeleton - Introductory Important Functions of the Skeleton - Introductory https://cdn.kastatic.org/ka-youtube-converted/vsSGFjZDYUY.mp4/vsSGFjZDYUY.mp4 134 The human skeleton https://www.khanacademy.org/science/grade-4-science-pakistan-national-curriculum/xd6642c7f392cd435:animal-structure-and-function/xd6642c7f392cd435:exoskeleton-and-endoskeleton/e/learning-about-skeletons-in-animals 2026-07-06T04:40:49.22516192Z Learning About Skeletons in Animals A foundational practice exercise designed to help learners understand the human skeleton, its important roles in the body, and how endoskeletons differ from exoskeletons. Sumera Anjum exercise