In angiosperms, which are flowering plants, the male reproductive organ is called the stamen. The stamen consists of two main parts:
1. Anther: The anther is the part of the stamen that produces and contains pollen. Pollen grains contain the male gametes (sperm cells) that are necessary for fertilization.
2. Filament: The filament is the stalk-like structure that supports the anther, holding it up so that it can release pollen.
So, in the context of the question, the correct answer would be "Anther" because it is the specific part of the male reproductive organ in an angiosperm responsible for producing and containing pollen.
