Question

что такое эволюция???????

Answer 1

Эволюция - это процесс постепенного изменения в лучшую сторону, или еще можно так объяснить: процесс изменения, помогающий приспособиться к определенным условиям.

Ну это если обычным языком обобщенно сказать) 

Answer 2

ну, естественный процесс развития живой природы

Answer 3

What is Evolution?

Evolution is a scientific theory that explains how species change over time. It is the process by which different forms of life have developed and diversified on Earth. The theory of evolution proposes that all living organisms share a common ancestor and have gradually evolved through a process of natural selection, genetic variation, and adaptation to their environment.

Key Points about Evolution:

- Common Ancestry: The theory of evolution suggests that all living organisms on Earth share a common ancestor. This means that humans, animals, plants, and even microorganisms are all connected through a vast tree of life.

- Natural Selection: Natural selection is a fundamental mechanism of evolution. It is the process by which certain traits or characteristics become more or less common in a population over time. Individuals with advantageous traits that help them survive and reproduce are more likely to pass on those traits to future generations.

- Genetic Variation: Genetic variation refers to the diversity of genes within a population. It is the raw material for evolution. Genetic variation arises through mutations, genetic recombination, and other genetic processes. This variation provides the basis for natural selection to act upon.

- Adaptation: Adaptation is the process by which organisms become better suited to their environment over time. Through natural selection, individuals with traits that are well-suited to their environment have a higher chance of survival and reproduction. Over generations, these advantageous traits become more common in the population.

The Evidence for Evolution:

There is a wealth of evidence supporting the theory of evolution. Here are some key pieces of evidence:

- Fossil Record: Fossils provide a record of past life on Earth and show how species have changed over time. Fossil evidence reveals transitional forms, which are intermediate stages between different species, providing evidence for common ancestry.

- Comparative Anatomy: Comparative anatomy involves studying the similarities and differences in the structures of different organisms. Homologous structures, such as the bones in the forelimbs of mammals, suggest a common ancestry.

- Embryology: Embryology is the study of the development of embryos. Similarities in the early stages of development among different species provide evidence for common ancestry.

- Genetics: Genetic evidence, such as DNA sequencing, reveals similarities and differences in the genetic code of different organisms. This information can be used to construct evolutionary relationships and trace the history of species.

- Biogeography: Biogeography is the study of the distribution of species across different geographic regions. The patterns of species distribution can be explained by the movement of species over time and their adaptation to different environments.

Conclusion:

Evolution is a scientific theory that explains how species change over time through natural selection, genetic variation, and adaptation. The theory is supported by a wide range of evidence, including the fossil record, comparative anatomy, embryology, genetics, and biogeography. It provides a framework for understanding the diversity of life on Earth and how different species are related to each other.