LIFE SCIENCE

Detailed explanation-1: -Homologous structures share similar developmental patterns; analogous structures do not. Examples: forelimb of human, bat, dogs, and whale all have been evolved from common ancestors. However, they may be used differently among different species or groups. Examples: wings of butterfly and insect.

Detailed explanation-2: -Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.

Detailed explanation-3: -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-4: -They all have different morphology, but have similar function. This is significant because organisms with analogous structures likely do not have a common shared ancestor but have evolved from different origins. This is why analogous structures are sometimes used as evidence for convergent evolution.

Detailed explanation-5: -Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions. An example of homologous structures are the limbs of humans, cats, whales, and bats.