photo of material is necessary for plant or animal because due to it the nutrients and oxygen are made available to all parts of body. if the transport of necessary nutrients and oxygen does not take place in the body the body will not to able to survive.
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Transport of materials is necessary in both plants and animals as every cell needs a regular supply of nutrients and oxygen for releasing energy through respiration.
The food that we eat is broken down into smaller components to be absorbed by the cells. The oxygen that we inhale is also transported to all the cells of the body. Our body also requires a constant removal of waste from the body.
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