Question

explain with an example for each of the following providers evidence in favour of evolution is organism a homologous organ b analogous organs c fossil fuels​

Answer 1

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The 3 factors that provide evidence in favour of evolution in organism are :

♦ Fossils
♦ Homologous Organs
♦ Analogous Organs

Roles :

♦ Fossils : Fossils are the remains of dead animals & plants of the ancient time that got stuck in rocks. Fossils provide a linkage between existing & pre-existing species. Fossils found closer to the the earth's surface are of complex & recent organisms. As we dig deeper, fossils of simple organisms are obtained. This geographical succession completely agrees with the concept of evolution.

♦ Homologous Organs : Homologous organs have same origin & anatomical structure but perform different functions. Presence of homologous organs among organisms tells that there existed a common ancestor for them from whom this structure was inherited by them. Homologous organs show the closeness of organisms. The more homologous organs they have, more recently they had a common ancestor. Homologous organs exhibit divergent evolution.

Eg : Forelimb of Humans & Wings of Bat

Answer 2

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Here is your answer:

1. Homologous organ : homologous structure is an organ, system, or body part that shares a common ancestry in multiple organisms. This definition is found in evolutionary biology and uses the meaning of having a similar structure or origin.

2. Analogous organ : Analogous organs are the opposite of homologous organs, which have similar functions but different origins. An example of an analogous trait would be the wings of insects, bats and birds that evolved independently in each lineage separately after diverging from an ancestor without wing.

3.Fossils fuels : Fossil are remain of dead buried deep under the ground.

By the process of carbon dating fossils are examined and show evidence of evolution