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The top documents tagged [specialized circulatory]
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C NIDARIA Hanna, Monica and Maddy. P HYLOGENETIC T REE
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1 of 33© Boardworks Ltd 2008. Why need a transport system? Single-celled organisms, such as bacteria and amoeba (below), can obtain nutrients and excrete
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EXTERNAL ENVIRONMENT Mouth Food CO 2 O2O2 ANIMAL Digestive system Respiratory system Circulatory system Urinary system Heart Interstitial fluid Body cells
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Mass Transport The movement of large quantities of substances around an organism. e.g. mammals – blood plants – xylem, phloem
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Module 2 Exchange and transport 1.2.7 The cardiac cycle
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Cnidaria
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