The type of informative speech Tori is preparing is Definition or definitional speech.
The definitional speech is one that is prepared with the aim of explaining the concept of a topic, theory or things that might be unfamiliar to the audience. The principal goal of this type of speech is to educate the audience and to do it in the best way so that they can understand. That is why it is fundamental to use examples in order to make it easy to follow the topic.
This is the type of speech Tori is preparing because she wants the listeners to learn about complicated concepts and ideas related to genetics and to ensure the concepts are thoroughly outlined, she provides examples.
The other type of speech are:
- Demonstration: This type explains how to do something.
- Explanatory: Explains the how or/and why of a topic.
- Descriptive: Provides a vivid picture of a place, person or animal.