I believe the answer is b.
Graph B, because the percentages between G and C are equal. Chargaff’s rule states that G = C and T = A. The graph correctly demonstrates this.
The outer coverings that are tough but, flexible provided protection to the land plants.
Electrons (negatively charged subatomic particles)
I guess the stomach is held in place by a variety of Muscle cells, Epithelial cells, and connecting tissues; so the answer is: all of the above.
