Read the following statements regarding biological museums.
(i) Biological museums are generally set up in educational institutes such as schools and colleges.
(ii) Museums have collections of preserved plant and animal specimens for study and reference.
(iii) Specimens are preserved in the containers or jars in preservative solutions.
(iv) Insects are preserved in insect boxes after collecting. killing and pinning.
(v) Larger animals like birds and mammals are usually stuffed and preserved.
(vi) Skeletons of mammals are not allowed to be kept in museums.
Whcih of the above statements is/are not correct ?

Options

A. (ii) and (iii)
B. (i) and (vi)
C. (v) only
D. (vi) only

Explanation

To determine which statements regarding biological museums are not correct, let's analyze each statement step by step.

### Step 1: Analyze Statement (i)
**Statement:** Biological museums are generally set up in educational institutes such as schools and colleges.
**Analysis:** This statement is correct. Biological museums are indeed often established in educational settings to facilitate learning about biodiversity and the history of life.

### Step 2: Analyze Statement (ii)
**Statement:** Museums have collections of preserved plant and animal specimens for study and reference.
**Analysis:** This statement is also correct. Biological museums typically house both plant and animal specimens for educational and research purposes.

### Step 3: Analyze Statement (iii)
**Statement:** Specimens are preserved in the containers or jars in preservative solutions.
**Analysis:** This statement is correct. Specimens are usually stored in jars or containers filled with preservative solutions to prevent decay.

### Step 4: Analyze Statement (iv)
**Statement:** Insects are preserved in insect boxes after collecting, killing, and pinning.
**Analysis:** This statement is correct. Insects are often collected, killed, and pinned into insect boxes for proper preservation and study.

### Step 5: Analyze Statement (v)
**Statement:** Larger animals like birds and mammals are usually stuffed and preserved.
**Analysis:** This statement is correct. Larger specimens, such as birds and mammals, are typically stuffed to maintain their shape and are preserved for display.

### Step 6: Analyze Statement (vi)
**Statement:** Skeletons of mammals are not allowed to be kept in museums.
**Analysis:** This statement is incorrect. Skeletons of mammals are commonly displayed in biological museums as they are crucial for understanding anatomy and evolution.

### Conclusion
The only statement that is not correct is statement (vi). Therefore, the answer to the question is that the sixth statement is incorrect.

### Final Answer
**The statement that is not correct is:** Statement (vi).

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