NEET Botany - MCQ Practice Questions

Which statement best describes the relationship between vessel elements and tracheids in angiosperm xylem?

The anatomical basis for the high tensile strength of wood in dicots is primarily due to:

In the phloem, sieve plate perforations serve the function of:

During the development of a dicot leaf, the dorsiventral structure is established with palisade parenchyma on the adaxial surface and spongy mesophyll on the abaxial surface. Which combination of factors is primarily responsible for maintaining this distinct anatomical differentiation?