Biogenetic law was proposed by

Options

A. Mayer
B. Emst Haeckel
C. Darwin
D. Altred Wallace

Answer

To answer the question "Biogenetic law was proposed by," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept**: The Biogenetic law, also known as the "biogenetic law of recapitulation," refers to the idea that the development of an individual organism (ontogeny) follows the same progression as the evolutionary history of that organism's species (phylogeny). This means that the embryonic stages of an organism resemble the adult forms of its ancestors.

2. **Identify the Proponent**: The Biogenetic law was proposed by a scientist. To find out who it is, we need to recall historical contributions to biology and evolution.

3. **Recall the Scientist's Name**: The Biogenetic law is attributed to Ernst Haeckel, a German zoologist and philosopher. He formulated this law in the 19th century.

4. **Determine the Year of Proposal**: Ernst Haeckel proposed the Biogenetic law in the year 1860.

5. **Conclude the Answer**: Based on the information gathered, the correct answer to the question is that the Biogenetic law was proposed by Ernst Haeckel.

### Final Answer:
The Biogenetic law was proposed by Ernst Haeckel in 1860.

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