In which of the following organisms, Malpighian tubules are found?

Options

A. Honey bee
B. Frog
C. Ascaris
D. Rabbit

Answer

To determine which organisms have Malpighian tubules, we can analyze each option provided in the question step by step.

### Step 1: Understand what Malpighian tubules are
Malpighian tubules are excretory structures found in certain organisms. They are slender tubes that help in the elimination of waste products from the body.

### Step 2: Analyze the first option - Honey Bee
Honey bees are insects, and they possess Malpighian tubules as part of their excretory system. These tubules help in the removal of nitrogenous waste from their body. Therefore, this option is correct.

### Step 3: Analyze the second option - Frog
Frogs are amphibians, and their primary excretory organs are kidneys. They do not have Malpighian tubules. Hence, this option is incorrect.

### Step 4: Analyze the third option - Ascaris
Ascaris is a type of roundworm, and it does have a specialized excretory system that includes cells known as renette cells, which function similarly to Malpighian tubules. Therefore, this option is also correct.

### Step 5: Analyze the fourth option - Rabbit
Rabbits are mammals, and like frogs, they primarily use kidneys for excretion. They do not have Malpighian tubules. Thus, this option is incorrect.

### Conclusion
Based on the analysis:
- The organisms that have Malpighian tubules are Honey Bee and Ascaris.
- The correct answer to the question is that Malpighian tubules are found in Honey Bee (Option 1) and Ascaris (Option 3).

### Final Answer
Malpighian tubules are found in Honey Bee and Ascaris.

---