who disapproved the theory of embryological evidence as to the evidence of evolution ?

Options

A. Hugo de Vries
B. Darwin
C. Ernst Heckel
D. Karl Ernst von Baer

Answer

To solve the question regarding who disapproved the theory of embryological evidence as a basis for evolution, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Theory of Embryological Evidence**:
- The theory of embryological evidence suggests that the embryos of different species exhibit similarities during certain stages of development, indicating a common ancestor.

2. **Identifying the Criticism**:
- This theory was criticized for being insufficient and not providing strong evidence for evolution. Critics argued that the similarities in embryos do not necessarily imply a direct evolutionary relationship.

3. **Key Figure in Disapproval**:
- The scientist known for disapproving this theory is Karl Ernst von Baer. He argued against the idea that all species evolved from a common ancestor based solely on embryological similarities.

4. **Biogenetic Law**:
- Von Baer contributed to the development of the Biogenetic Law, which states that the development of an individual organism (ontogeny) follows the same progression as the evolution of that organism's species (phylogeny), but he emphasized that embryos of different species do not necessarily reflect their evolutionary relationships.

5. **Conclusion**:
- Therefore, the answer to the question is that Karl Ernst von Baer disapproved of the theory of embryological evidence as a basis for evolution.

### Final Answer:
Karl Ernst von Baer disapproved the theory of embryological evidence as to the evidence of evolution.

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