Why the statement is incorrect:

* Tagging impacts behavior: It's impossible to completely avoid the impact of a tag on an animal's behavior. Tags can affect movement, feeding, mating, and even survival rates.

* Minimizing impact is crucial: Scientists strive to use tags that minimize the impact on animals' lives. This is critical for the accuracy of their research.

What scientists MUST do when tagging animals for population studies:

1. Ensure the tag is durable: The tag needs to last for the duration of the study and withstand environmental conditions.

2. Choose an appropriate tag type: The type of tag depends on the animal, its size, and the study's needs.

3. Properly attach the tag: The tag must be securely attached to avoid loss or harm to the animal.

4. Minimize capture and handling stress: Scientists must strive to capture and handle animals as gently and quickly as possible.

In summary: While minimizing the impact on behavior is a goal, it's not always entirely achievable. Scientists focus on mitigating the negative effects as much as possible to ensure accurate and ethical data collection.