Polypeptide is a sequence of amino acids
Answer:
Explanation:
The kidneys are organs of the urinary system - which remove excess water, salts and urea. Blood is transported to the kidney in the renal artery . The blood is filtered at high pressure and the kidney reabsorbs any useful materials such as glucose, salt ions and water for the body!
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The student may look for a plant wall, because cell walls are present only in plant cells.
Answer:
According to the 10% law, only 10% of energy will be gained by the individuals who are present at a higher trophic levels by eating the organism present at their lower trophic level.
So there would be very little energy available for the organism present at 3rd or 4th trophic level therefore tropic level is limited. This is the reason why a low number of organisms are present at higher tropic levels than lower trophic level.
Therefore decrease in the energy availability at the higher trophic level limits the number of trophic levels in a food chain of the web.
<span>The chemical processes that occur within a living organism in order to maintain life</span>
