Root hairs have hair like extensions which help increase the surface for absorption of water and mineral salts from the soil. It is similar in function to the villi of the intestinal tract which also has hair like extensions to increase the surface area for absorption of nutrients.
C. But be aware it increases in the third shell by 1 from left to right
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discussed chickenfeed
THE METRIC SYSTEM OR METRIC UNITS ARE THE BASIC UNITS USED IN MEDICINE. GRAM,LITER,METER ARE JUST SOME EXAMPLES OF THESE. HOPE THIS HELPS! THANK YOU!