AP BIOLOGY

Detailed explanation-1: -Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. For example, the wings of bats and birds, shown in Figure below, look similar on the outside.

Detailed explanation-2: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.

Detailed explanation-3: -B is correct. Analogous structures are structures which perform the same function, but have different ancestry. 3. We know that organisms must have evolved structures independently if they do not have a common ancestor.

Detailed explanation-4: -What Are Analogous Structures? Analogous structures are similar structures in unrelated organisms. These structures are similar because they do the same job, not because they share common ancestry. For example, dolphins and sharks both have fins, even though they aren’t related.

Detailed explanation-5: -For example, analogous structures are structures that are similar or resembling in certain respects, e.g. in function or in appearance but not in evolutionary origin or developmental origins, such as the wings of a butterfly and the wings of a hummingbird are analogous.