3. The wings of birds and butterflies have different structures , but the same function.What type of structures -homologous or analogous-are these wings? How can scientists use them to learn about the organisms? Enter your answer here.

## Step 1<br />The problem is asking us to identify the type of structures that the wings of birds and butterflies are. The two options given are homologous and analogous. <br /><br />## Step 2<br />Homologous structures are those that have a common ancestry, meaning they have evolved from the same structure in a common ancestor. These structures may not necessarily perform the same function in the organisms that possess them.<br /><br />## Step 3<br />Analogous structures, on the other hand, perform the same function in different organisms but do not share a common ancestry. These structures have evolved independently in different organisms, often as a result of similar environmental pressures.<br /><br />## Step 4<br />In this case, the wings of birds and butterflies perform the same function, which is flight, but they have different structures. This indicates that they are analogous structures.<br /><br />## Step 5<br />By studying these analogous structures, scientists can learn about the organisms and their evolutionary history. They can infer that these organisms have adapted to similar environments in different ways, leading to the development of analogous structures.