The embryo sac is to ovule as _______ is to an anther.
a. Stamen
b. Filament
c. Pollen grain
d. Androecium
The answer is the option (c) Pollen grains
The embryo sac is present in the ovule, while pollen grains are present in anther. The embryo sac, also known as the female gametophyte, is found within the ovule and develops from the functional megaspore. A pollen grain represents the male gametophyte.