Biogenetic law is also called "Ontogeny repeats phylogeny".

Explanation

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- The term "Biogenetic law" refers to a theory in biology that suggests that the development of an individual organism (ontogeny) follows the same progression as the evolutionary history of that organism's species (phylogeny).

2. **Identifying the Key Concept:**
- The phrase "Ontogeny repeats phylogeny" is a summary of the biogenetic law, which suggests that during the embryonic development of an organism, it goes through stages that resemble the adult forms of its evolutionary ancestors.

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