Who proposed the biogenetic law?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for the name of the scientist who proposed the biogenetic law.

2. **Identifying the Biogenetic Law**: The biogenetic law is also known as the Recapitulation theory. This theory suggests that the development of an organism (ontogeny) follows the same progression as the evolutionary history of that organism's ancestors (phylogeny).

3. **Finding the Proposer**: The biogenetic law was proposed by the scientist Ernst Haeckel. He is known for his work in biology and philosophy, and he formulated this theory in the 19th century.

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