LIFE SCIENCE

Detailed explanation-1: -Fossils provide important evidence for evolution and the adaptation of plants and animals to their environments. Fossil evidence provides a record of how creatures evolved and how this process can be represented by a ‘tree of life’, showing that all species are related to each other.

Detailed explanation-2: -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.

Detailed explanation-3: -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.