Which cells form a protective barrier in the root where all materials are forced to move through the symplast

i don't know. if i were you, i would search it up online : d

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

you click your profile picture in the top right corner and it says edit profile.