Definition: Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Pieces of Evidence
1. Fossil Record
Fossil records are the most conclusive evidence that evolution has occurred. Natural cycles also preserved the bones and fossils of ancient animals, plants, and other species. Paleontologists use fossils preserved in rocks to investigate the evolution of diverse creatures. Horses, for example, are derived from creatures for whom only fossils exist today, according to the fossil record. The older a specimen is, the deeper it is buried.
2. Biogeography
Biogeography is the study of the geographic distribution of fossils and living organisms. Typically, organisms arise in locations where other species of the same sort already exist. The distribution of life on Earth is best described by evolutionary tendencies. Geologic transition and development may be the sole explanation for the ranges of many creatures.
3. Comparative Anatomy
Comparative anatomy is the study of the similarities and differences between the anatomy of different species. Phylogeny and evolutionary biology play a big role in this. By comparing the architecture of different species, it is feasible to deduce comparable ancestry.
4. Embryology
Embryology is the analysis of how an individual develops from an egg to an adult. Darwin based his ideas that species descend and evolve from a single ancestor on embryology. Several embryos seem similar in their early stages, but as they grow, the differences between creatures become increasingly obvious. When two species share a more recent common ancestor, embryos of species with a greater genetic link seem identical over a longer period of time, according to Darwin. Human vestigial attachments, such as tails or gills, may be present in embryos at an early stage of development.
Answers & Comments
Answer:
Evolution
Definition: Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Pieces of Evidence
1. Fossil Record
2. Biogeography
3. Comparative Anatomy
4. Embryology