Tail-lss sperm occurs in

Options

A. Frog
B. Ascaris
C. Amphioxus
D. Rabbit.

Answer

To solve the question "Tail-less sperm occurs in", we can follow these steps:

### Step 1: Understand the Question
The question asks about the occurrence of tail-less sperm in certain organisms. We need to identify which of the given options has sperm that lacks a tail.

### Step 2: Analyze the Options
The options provided are:
- A) Frog
- B) Scare (likely referring to "Scaris" or "Ascaris")
- C) Amphioxis
- D) Rabbit

### Step 3: Review Sperm Characteristics
- **Frog**: Frogs have motile sperm with tails that help them swim to the egg.
- **Scaris (Ascaris)**: This is a type of nematode, which is known to have non-motile, tail-less sperm.
- **Amphioxis**: Also known as lancelets, these organisms have motile sperm with tails.
- **Rabbit**: Rabbits have motile sperm with tails.

### Step 4: Identify the Correct Answer
From the analysis, the only option that describes an organism with tail-less sperm is:
- **B) Scaris (Ascaris)**

### Conclusion
The correct answer to the question "Tail-less sperm occurs in" is **B) Scaris (Ascaris)**.

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