MCQ
Identify $A$ and $B$ in diagram given below:


- A$A-Stamen; B-Pistil$
- B$A-Filament; B-Anther$
- ✓$A-Anther; B-Filament$
- D$A-Pistil, B-Stamen$

$(ii)$ It is tetragonal in shape with 4 microsporangia located at each lobe in its corners
$(iii)$ Microsporangia develop into pollen sac, which produces pollen
$(a)$ A typical stamen
$(b)$ Three-dimensional cut section of an anther
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$(I)$ Majority of flowering plants use a range of animals as pollinating agents.
$(II)$ Among the animals, insects particularly flies are the dominant biotic pollinating agents.
$(III)$ Majority of insect pollinating flowers are small and less colorful.
$(IV)$ The body of the animal gets a coating of pollen grains, which are generally sticky in animal pollinated flowers.
| Column $- I$ | Column $- II$ |
| $(a)$ Vertebrates | $(p)\; 359$ |
| $(b)$ Plants | $(q)\; 784$ |
| $(c)$ Indian invertebrate | $(r)\; 87$ |
| $(s)\; 338$ |