Which of the following statement is false ?
I. The rule of embryonic development were given by Von Bear.
II. Recapitulation theory was proposed by Haeckel.
III. Haeckel's theory of recapitulation states that ontogeny repeats phylogeny .
IV. Ontogeny recapitulates phylogney is the brief definition of Biogenetic law.

Options

A. I and II
B. III and IV
C. All
D. None

Answer

To determine which of the given statements is false, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement I: The rule of embryonic development was given by Von Baer.**
- This statement is **true**. Karl Ernst von Baer formulated the principles of embryonic development in 1828, which describe how embryos develop from general forms to more specialized forms.

2. **Statement II: Recapitulation theory was proposed by Haeckel.**
- This statement is also **true**. The recapitulation theory, often referred to as the biogenetic law, was proposed by Ernst Haeckel in 1866.

3. **Statement III: Haeckel's theory of recapitulation states that ontogeny repeats phylogeny.**
- This statement is **true**. Haeckel's recapitulation theory posits that the development of an organism (ontogeny) reflects the evolutionary history of its species (phylogeny).

4. **Statement IV: Ontogeny recapitulates phylogeny is the brief definition of Biogenetic law.**
- This statement is **true**. The phrase "ontogeny recapitulates phylogeny" is indeed a concise way to describe the biogenetic law proposed by Haeckel.

### Conclusion:
After analyzing all four statements, we find that all of them are true. Therefore, there is no false statement among the options provided.

### Final Answer:
None of the statements are false.

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