List some of the plants are given below. How many plant /s/is/ are vascular and monoecious ?
Chara, pinus , Cycas , Sphagnum , Maize, Papaya

Options

A. One
B. Two
C. Four
D. Three

Answer

To solve the question of how many plants from the given list are vascular and monoecious, we will analyze each plant one by one.

### Step 1: Identify Vascular Plants
Vascular plants are those that possess xylem and phloem, which are responsible for the transport of water, nutrients, and food. The plants listed are:
- **Chara**: This is an algae and is not vascular.
- **Pinus**: This is a gymnosperm and is vascular.
- **Cycas**: This is also a gymnosperm and is vascular.
- **Sphagnum**: This is a moss and is not vascular.
- **Maize**: This is an angiosperm and is vascular.
- **Papaya**: This is an angiosperm and is vascular.

**Vascular Plants Identified**: Pinus, Cycas, Maize, Papaya

### Step 2: Identify Monoecious Plants
Monoecious plants have both male and female reproductive structures on the same individual. Let's check each plant:
- **Chara**: Not monoecious; it has separate male and female plants.
- **Pinus**: Monoecious; it has both male and female cones on the same plant.
- **Cycas**: Monoecious; it has both male and female reproductive structures on the same plant.
- **Sphagnum**: Not monoecious; it has separate male and female plants.
- **Maize**: Monoecious; it has both male (tassels) and female (ears) flowers on the same plant.
- **Papaya**: Typically dioecious, but some varieties can be monoecious. However, most common varieties are dioecious.

**Monoecious Plants Identified**: Pinus, Cycas, Maize

### Step 3: Count the Plants that are Both Vascular and Monoecious
From our analysis:
- **Pinus**: Vascular and Monoecious
- **Cycas**: Vascular and Monoecious
- **Maize**: Vascular and Monoecious

**Total Count**: 3 plants (Pinus, Cycas, Maize)

### Final Answer
The number of plants that are vascular and monoecious is **3**.