Evolution is a gradual Process


 
 
Concept Explanation
 

Evolution is a Gradual Process

Evolution is a gradual process:  Complicated organs, such as the eyes are selected of an advantage that they are not generated by a single DNA change. Such complex organs are created bit by bit over generations and seem to be a very popular adaptation. The structure is different in different organisms and is sufficient enough to suggest separate evolutionary origins. Feathers, e.g. evolved to provide insulation in cold weather, but later were adapted to be used for flight in animals like birds. In fact, some dinosaurs had feathers too, although they could not fly using them. Thus, we can infer that birds are very closely related to reptiles, since dinosaurs were reptiles. Sometimes, dissimilar appearing structures also evolved from common ancestors. Thus, evolutionary relationship can be established by studying fossils

.... (More Text Available, Login?)
Sample Questions
(More Questions for each concept available in Login)
Question : 1

Which phenomenon explains the formation of cauliflower from wild cabbage ?

Right Option : B
View Explanation
Explanation
Question : 2

From the evolutionary point of view , what was the function of a feather, before it helped in flight ?

Right Option : C
View Explanation
Explanation
Question : 3

Complicated organs, such as the ____________________  have an advantage that they are not generated by a single DNA change.

Right Option : D
View Explanation
Explanation
 
 
Related Videos
Language - Hindi/English
Language - Hindi/English


Students / Parents Reviews [20]