0 votes
459 views
in Biology Form 2 by
h

1 Answer

0 votes
by
Has a counter flow to maintain a steep concentration for re-absorption of mineral salts and water.                              It's u-shaped and long to increase the surface area for re-absorption of water.   Has numerous mitochondria for re-absorption of mineral salts.                        It's highly vascularized to enhance re-absorption of water. 
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.

6.4k questions

9.6k answers

6 comments

590 users

...