1) All living things are made up of _____. a) dots b) cells c) paramecium d) micro-organism 2) _____ cells help to prevent germs from entering the body. a) skin b) red blood c) liver d) muscle 3) Nerve cells help to carry __________ around the body. a) oxygen b) energy c) information d) food 4) Cells in an organism differ in shape, size and _______. a) speed b) function c) origins d) movement 5) Complete the following relationship. cell -> _____ -> organ a) group b) pack c) shape d) tissue

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