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Why is blood needed by all the parts of a body?

ScienceClass 7CBSEAnswered 27 Mar 2026
Answer

Solution:

Blood is a significant part of the transport system in our body, and we need blood for the following reasons:

  • For the transport of oxygen to all parts of our body
  • To expel carbon dioxide from our body
  • To transmit heat, thus helping in the regulation of body temperature.
  • It is required to fight out infections and diseases.
Science · Class 7