Bacteriophages are insects that infect animal cells by injecting their DNA into these cells.

Explanation

**Step-by-Step Solution:**

1. **Understanding Bacteriophages**: The term "bacteriophage" is derived from "bacteria" and "phage," which means "to eat." Bacteriophages are not insects; they are a type of virus that specifically infects bacteria.

2. **Infection Mechanism**: Bacteriophages infect bacterial cells by attaching to the surface of the bacteria and injecting their genetic material (DNA or RNA) into the host cell. This process is crucial for their replication.

3. **Clarifying the Statement**: The statement claims that bacteriophages are insects that infect animal cells. This is incorrect. Bacteriophages do not infect animal cells; they specifically target bacterial cells.

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