1) The smallest unit of an organism a) Tissue b) Oragn c) Organ system d) Cell 2) Cells of the same type group together to form a) An organ b) A tissue c) An organ system 3) Cells with specific functions and features are called a) different cells b) specialised cells c) odd cells d) perfect cells 4) The body system containing the heart and blood vessels is the a) Respiratory system b) Reproductive system c) Circulatory system d) Nervous system 5) The gas we need to release energy from food is a) Carbon dioxide b) Nitrogen c) Oxygen d) Methane 6) The sugar our cells use as a source of energy is called a) Maltose b) Glucose c) Starch d) Glycogen

Body systems warm up

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