A root absorbs the water and nutrients through their surface cell. Thus in order to have large number of surface cells, the surface area of the roots must be high. This is ensured by the roots hairs. These root hairs are tiny hairy projections that occur in both taproots and fibrous roots and their major function is to enhance the surface area of roots for better and sufficient absorption of water and nutrients.
"Root hair zone" is the zone of the root tip among the choices given in the question that <span>increases the surface area for water and dissolved mineral uptake. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.</span>
Birds migrating in the winter would be a behavioral adaptation. The rest of the adaptations would be structural or physiological because they are controlled by mutations in the DNA. <span />
