Different birds eat different foods so their beaks must be suited to be able to eat the types of food that each species needs
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.
Hardness is the answer I believe
