1) Skeleton is ....................... and ............................. in .................................. organisms such as humans and animals. a) hard, stable,unicellular b) fixed,movable,multicellular c) hard,fixed,multicellular d) simple,easy,earthworm 2) There are 3 type of support systems: a) hydrostatic skeleton b) endoskeleton c) exoskeleton d) warm-blodded 3) Endoskelton is possed by ............ vertebrates. a) none b) all c) one d) some 4) Exoskeletons animals : a) leech b) scorpions c) frog d) crabs e) ant f) cockroaches 5) Worms, planaria,leeches is in ....................................... skeleton group a) movement b) hydrostatic c) invertebrates d) vertebrate

Chapter 6 science form 4

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