Question

Which one of the following is Monoecious?

• A. Marchantia
• B. Cycas
• C. Pinus
• D. date palm

Answer 1

The correct option is C

Pinus

The correct option is C.

The explanation for the correct option:

1. Plants that have both male and female flowers
2. They are different from hermaphrodites in having separate flowers for male and female reproductive structures.
3. Dioecious plants have male and female flowers on different plants.
4. Pinus have both male and female reproductive structures on the same plants.

The explanation for the incorrect option:

Option A:

Marchantia is dioecious because it has a separate male and female thallus.

Option B:

Cycas is a dioecious plant because male and female reproductive structures are born on different Cycas plants.

Option D:

The male and female flowers of the date palm develop on distinct individuals.

Final answer: Pinus is Monoecious