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Victory Step Education Services Primary Seven Integrated Seience Lession Notes 2020 22

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VICTORY STEP EDUCATI ON SERVICES.07766855 66/0708758922 Victory step education services PRIMARY SEVEN INTEGRATED SCIENCE LESSON NOTES PRIMARY SEVEN SCIENCE TERM I: 2020 -22 MUSCULAR AND SKELETAL SYSTEM Definition of the skeleton.  A skeleton is a structure that supports the body or it is the protective and supportive structure of an organism. Types of skeletons They include; - Hydrostatic skeleton - Exo skeleton - Endo skeleton 1. Hydrostatic skeleton.  This is a type of skeleton where the body of an organism is filled with a liquid under pressure.  Organisms with hydrostatic skeleton include; - Earth worms. - Slugs. - Snail - Intestinal worms - maggots 2. Exo skeleton.  This is a type of skeleton found outside the body of a creature.  Exo skeleton is common with all arthtopod e.g. house flies, grass hoppers, mosquitoes spider , crab e.t.c  Exo skeleton provides support and protection to soft parts of an centipede arthropod etc.  Organisms with this 3. Endo skeleton.  This is a type of skeleton found inside the body of an organism. VICTORY STEP EDUCATI ON SERVICES.07766855 66/0708758922  Organisms with endo skeleton include, man( human beings) cows, goats e.t.c  Endo skeleton is made of bones and cartilages. The structure of the human skeleton BONES  Bones are hardest tissues found in animals with back bones (vertebrates).  Bones contain living cells which are supplied with food and oxygen by blood vessels.  Bones are made from mineral salts and proteins.  Mineral salts include calcium and phosphorus. Types of bones Bones are classified according to their shape s as: (a) Long bones These are found in the arms and legs. Examples of long bones  Radius.  Ulna  Femur  Fibula  Tibia  Humerus NB: The femur is the longest …
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Victory Step Education Services Primary Seven Integrated Seience Lession Notes 2020 22, is an educational document on StudyUganda.com. This resource includes: "VICTORY STEP EDUCATI ON SERVICES.07766855 66/0708758922 Victory step education services PRIMARY SEVEN INTEGRATED SCIENCE LESSON NOTES PRIMARY SEVEN SCIENCE TERM I: 2020 -22 MUSCULAR AND ……" (Format: PDF) — 744.70 KB, 128 pages. Added July 23, 2026.

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