1) This system consists of brain and spinal cord. a) nervous b) gas exchange c) digestive d) excretory 2) cells with similar function are grouped together to form a) organ b) tissue c) organ system d) none of the above 3) The cell is specialised to carry nerve impulse. a) Red blood cell b) nerve cell c) ciliated cell d) pallisade mesophyll 4) Animals and plants grow by cell division, called   a) mitosis b) meiosis c) germination d) none of the above

Cell Division

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