Vestigal organs provide evidence of organic evolution in the category

Options

A. Anatomical
B. Embryological
C. Morphological
D. Palaeontological

Answer

### Step-by-Step Solution:

1. **Understanding Vestigial Organs**:
- Vestigial organs are those anatomical structures that were fully functional in the ancestors of a species but have lost their primary function in the current organisms.
- Example: In humans, the muscles of the ear, the coccyx (tailbone), and the nictitating membrane are considered vestigial organs.

2. **Connection to Evolution**:
- The presence of vestigial organs indicates that these structures were once advantageous for survival in ancestral species but have become redundant due to changes in lifestyle or environment over time.
- This supports the theory of evolution, showing that species change and adapt over generations.

3. **Categorizing Evidence of Evolution**:
- The question asks to categorize the evidence provided by vestigial organs. The options given are:
- A) Anatomical
- B) Embryological
- C) Morphological
- D) Paleontological

4. **Analyzing the Options**:
- **Anatomical**: This relates to the structure of the body. Vestigial organs are indeed anatomical structures that provide evidence of evolutionary change.
- **Embryological**: This refers to the development of embryos. Vestigial organs are not specifically related to embryonic development, so this option is incorrect.
- **Morphological**: This pertains to the form and structure of organisms. While vestigial organs are part of morphology, the specific evidence they provide is more anatomical in nature.
- **Paleontological**: This involves the study of fossils. Vestigial organs are not fossils themselves, so this option is also incorrect.

5. **Conclusion**:
- The correct answer is **A) Anatomical**, as vestigial organs provide anatomical evidence of organic evolution.