26% is taken up by ocean sediment. 26% taken by net terrestrial uptake and Human activities, especially conventional farming activities and burning fossil carbon as fuel, have disturbed the carbon cycle's balance, leading to more carbon dioxide being released into the atmosphere than is being taken up by plants
Genetic changes within and among populations
True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
I dont remember much of biology but i do remember my teacher saying something about phosphate backbone, i know its not much help. sorry!!
