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Though human are heterogeneous in ex...

Though human are heterogeneous in external dimesion and colour . The colour of blood is identical . Give reason .

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All human beings have blood which is of uniform compostion . Blood is red in colour due to presence of red blood cells containing the respiratory pigment haemoglobin . Therefore Colour of blood will be identical in all human beings irrespective of external appearance .
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SURA PUBLICATION-TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS-ADDITIONAL QUESTIONS & ANSWER ( HIGHER ORDER THINKING SKILLS (HOTS )) :
  1. Though human are heterogeneous in external dimesion and colour...

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