What's the effect if each structure of a dicot root was absent

the backbone of the dna and rna compound is sugar phosphate.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101

idk and i also need to know where are those bio brainy acts lol