Final answer:
Male and female rice plants can be differentiated based on their flowers. Male flowers have long stamens, while female flowers have elongated stigmas. Both parts play a role in pollination and fertilization.
Step-by-step explanation:
Rice plants can be identified as male or female based on their flowers. Rice plants have bisexual flowers, which means they have both male and female reproductive parts. The male flowers have long stamens that extend out of the flower, while the female flowers have elongated stigmas. Both the stamens and stigmas are involved in the process of pollination and fertilization, leading to the development of fruits (cereal grains).