Which layer of microsporangium provides nutrition to the developing pollen grains?

Tapetum

The correct answer is Option (4) → Tapetum

The tapetum is a specialized tissue found within the anther of a flower, specifically surrounding the developing microspores. It plays a crucial role in the development and nourishment of the pollen grains. The tapetum provides essential nutrients, proteins, and enzymes to support the development and maturation of the pollen grains.Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.