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What are the componenWhat are thefunctions of these compomentsbloodhiWhy ts it neceasary to separate onxygenated aud deosygenated bluiodWhat are the compouents of the transport system in highly orgplants?mammals and birds?uwpurted in plants? |
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Answer» Why is it necessary to separate oxygenated and deoxygenatedblood inmammals and birds? Ans. It is necessaryinmammals and birdstoseparate oxygenatedand de-oxygenatedblood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature. In highly organized plants, vascular tissues (Xylem and Phloem) are the main components of transportation system. In general, xylem carries the waterandmineralsfrom roots to the aerialpartsof the plants, whereas phloem carries food from leaves to otherpartsof the plants. |
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