Notochord like structure is present in hemichordates in the region

Options

A. Proboscis
B. Collar
C. Trunk
D. Tail

Answer

To answer the question regarding the location of the notochord-like structure in hemichordates, we can follow these steps:

### Step 1: Understand the Structure of Hemichordates
Hemichordates are a group of marine animals that share some characteristics with chordates. Their body is divided into three main regions: the proboscis, collar, and trunk.

### Step 2: Identify the Function of the Notochord
The notochord is a flexible, rod-like structure that provides support and is a defining feature of chordates. In hemichordates, a notochord-like structure is present, which serves a similar supportive function.

### Step 3: Determine the Location of the Notochord-like Structure
In hemichordates, the notochord-like structure is specifically located in the anterior region of the body, which corresponds to the proboscis. The proboscis is the foremost part of the body and is responsible for various functions, including feeding.

### Step 4: Conclusion
Based on the structure of hemichordates and the location of the notochord-like structure, we can conclude that the correct answer to the question is that the notochord-like structure is present in the **proboscis** region.

### Final Answer
The notochord-like structure is present in hemichordates in the region of the **proboscis**.

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