AP BIOLOGY

Detailed explanation-1: -Comparative anatomy refers to the study of the similarities and differences in the anatomy of two species. Generally, it involves comparing the body structures of two species as seen in evolutionary biology and phylogeny.

Detailed explanation-2: -Analogous structures, by contrast, may resemble each other because they perform the same function, but they have different evolutionary origins and often a different structure, the wings of insects and of birds being a prime example of this.

Detailed explanation-3: -Comparative anatomy is the study of the similarities and differences in the structures of different species. Similar body parts may be homologies or analogies. Both provide evidence for evolution.

Detailed explanation-4: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. The Figure below shows the hands of several different mammals. They all have the same basic pattern of bones.

Detailed explanation-5: -Anatomical similarities between organisms support the idea that these organisms evolved from a common ancestor. Thus, the fact that all vertebrates have four limbs and gill pouches at some part of their development indicates that evolutionary changes have occurred over time resulting in the diversity we have today.