Which of the following statements best defines the monoecious?

Correct option is A

· The term monoecious refers to a plant that has both male and female reproductive organs within the same individual, allowing it to produce both pollen and ovules.

· In flowering plants, this means that both staminate (male) and pistillate (female) flowers are present on the same plant.

· However, monoecious plants may have separate male and female flowers, or they may have bisexual flowers (flowers with both androecium and gynoecium).

· A flower with both androecium (male reproductive part) and gynoecium (female reproductive part) is known as a bisexual flower or a perfect flower, which is characteristic of some monoecious plants.

· However, the term monoecious refers to the entire plant having both reproductive structures, not just one flower.

Additional Information:

• Examples of monoecious plants include maize, cucumber, and squash.
• These plants have separate male and female flowers on the same plant, but each flower is either male or female.

Other Options:

• A flower with dithecous: Dithecous refers to anthers that have two lobes, but it does not define monoecious plants.
• A flower with gynoecium only: A flower with only a gynoecium (female structure) is called a pistillate flower. If a plant has only pistillate or only staminate flowers, it is called dioecious, not monoecious.
• A flower with androecium only: A flower with only an androecium (male structure) is called a staminate flower. A plant with only staminate or only pistillate flowers would be dioecious.