NEET BIOLOGY

Detailed explanation-1: -In modern biology, gradualism, or “phyletic gradualism, ” refers primarily to a pattern of sustained, directional, and incremental evolutionary change over a long period during the history of a species.

Detailed explanation-2: -The theory of evolution is based on the idea that all species? are related and gradually change over time. Evolution relies on there being genetic variation? in a population which affects the physical characteristics (phenotype) of an organism.

Detailed explanation-3: -Evolution is a process of gradual change that takes place over many generations, during which species of animals, plants, or insects slowly change some of their physical characteristics.

Detailed explanation-4: -Which of the following best describes evolution? It is the change in heritable traits in living populations over successive generations.

Detailed explanation-5: -Finch Species Gradualism Example A group of finches begins to exhibit different features from those in the rest of the population, including shorter beaks and black stripes on their wings. Eventually, the two distinct groups of birds are considered entirely separate species from one another.