Give an example of characteristics being used to determine how close two species are in evolutionary terms.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Evolutionary Relationships**: To determine how close two species are in evolutionary terms, scientists look for similarities in characteristics that may indicate a common ancestry. These similarities can be structural, functional, or genetic.

2. **Identifying Similar Characteristics**: One way to identify these similarities is through the study of analogous organs. Analogous organs are structures that serve similar functions but have different evolutionary origins. They can provide insights into the evolutionary relationship between species.

3. **Example of Analogous Organs**: A clear example of analogous organs can be found in birds and dinosaurs. Both groups have feathers, but their functions differ. In birds, feathers are primarily used for flight, while in dinosaurs, feathers were likely used for insulation.

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