Thank you for reporting, we will resolve it shortly
Q.
In an angiosperm, microsporangium is
NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants
Solution:
The anther is a bilobed and four-sided tetragonal structure having four microsporangia. These microsporangia later develop into a pollen sac where the pollen grain is formed. Each microsporangium or pollen sac has four walls - epidermis, endothecium, middle layer, and tapetum. Stamen is microsporophyll while pollen grains are microspores