Homologous Structures
Question 1: What is Convergent Evolution?
Answer:
Convergent Evolution is another type of evolutionary process. Here, two or more species developed from two different ancestors. But they share a common trait between them. It is quite opposite of the divergent evolution. Here, with the help of nature, the same traits developed in two distinct species.
Question 2: What is a Homologous Structure?
Answer:
Homologous structures are those which have the same structures but functions that are different. For example forelimbs of mammals, reptiles, and amphibians, the structure of the forelimbs of these animals is the same but the function of the forelimbs in all these animals is different. These structures originated from similar ancestors.
Question 3: Does the wings of a Bird & Butterfly an example of Homologous Structure?
Answer:
No! The wings of a Bird & Butterfly are not Homologous Structures. As they perform the same function. Also, the anatomical structure of the wings is not the same. So, they are fulfilling the criteria for the analogous structure. That is why they are analogous structures.
Question 4: Does the wings of Bird & Bat an example of Homologous Structure?
Answer:
Yes, The wings of birds & bats are a homologous structures. Though they perform the same function, the anatomical structure of the wings is the same. So, they are fulfilling the criteria for the Homologous Structure. That is why they are homologous structures.
Question 5: Does genetic changes required for developing Homologous Structure?
Answer:
Genetic changes are the basic things in the evolutionary process. When the species tries to get a new trait, it tries to make a change in the gene itself. Natural Selection also helps to make a change there. This genetic change will be inherited by the next generation. Thus, it helps to create new species. The creation of new species from the same ancestor leads to develop a homologous structure.
What are Homologous Structures?
Evolution is a continuous process of nature. Any species need to upgrade itself. Thus it can able to survive in a continuously changing environment. This change always occurred in a positive direction. This means after the changing of a creature, they became more developed than the previous version. Evolution works in such a way. It takes millions & millions of years to complete a process. Some scientists believe that Evolution is a never-ending process. It g-oes running for an infinite time. During this process, a creature will be always developed. There are many structures developed during the evolution process of certain species. Homologous Structure is one of them.