Antherozoids of moss are

Options

A. Short, curved and biciliate
B. Rod-shaped, biciliate
C. Short and multiciliate
D. Long and multiciliate.

Answer

**Step-by-Step Solution:**

1. **Understanding Mosses**: Mosses belong to the group of plants known as bryophytes. Bryophytes are characterized as non-vascular plants, meaning they lack specialized tissues for transporting water and nutrients.

**Hint**: Remember that bryophytes include both mosses and liverworts, and they are non-vascular.

2. **Reproductive Structures**: In mosses, sexual reproduction involves the formation of male and female gametes. The female gamete is produced in a structure called the archegonium, while the male gamete is produced in the antheridium, which releases antherozoids.

**Hint**: Focus on the terms archegonium (female) and antheridium (male) to understand where gametes are produced.

3. **Characteristics of Antherozoids**: Antherozoids are the male gametes in mosses. They are motile, meaning they can move, and they are specifically described as being bisiliated, which means they have two flagella.

**Hint**: Remember that motile gametes are important for fertilization in non-vascular plants like mosses.

4. **Structure of Antherozoids**: Antherozoids are short and slightly curved. This distinguishes them from the larger, non-motile archegonium.

**Hint**: Keep in mind the physical characteristics of antherozoids: they are short, curved, and have two flagella.

5. **Fertilization Type**: The fertilization process in mosses is known as allogamy, where there is a difference in size and shape between the male and female gametes.

**Hint**: Allogamy is a key term to remember, as it describes the fertilization process involving distinct male and female gametes.

6. **Evaluating Options**: Given the characteristics of antherozoids, we can eliminate options that describe them incorrectly. The correct answer will describe antherozoids as short, curved, and bisiliated.

**Hint**: When evaluating options, look for descriptions that match the characteristics we discussed.

**Final Answer**: The correct description of antherozoids of moss is that they are short, curved, and bisiliated.

---