Reptile scales! Or, more specifically, reptiles descended from dinosaurs.
Answer: The vascular plants are set apart in two main ways: Vascular plants have vascular tissues, which circulate resources through the plant. This feature allows vascular plants to grow to a larger size than non-vascular plants, which lack these specialized conducting tissues and are therefore restricted to relatively small sizes.
D. An element donates an electron to another element.
The answer is
C. The way the layer interacts with the layer below it.