Biology
Grade-9
Easy
Question
Which example explains Lamarckism?
Webbed feet of aquatic birds
Darwin’s finches
- Peppered moths
Deer mouse
Webbed feet of aquatic birds
Darwin’s finches
Deer mouse
Hint:
Lamarck proposed theories like the inheritance of acquired characters, use, and disuse, increase in complexity, etc.
The correct answer is: Webbed feet of aquatic birds
- Lamarck often used the webbed feet of ducks and geese as an example of how using an organ strengthens it.
- He said that some birds need to go to the water to get food and spread their toes when they strike the water.
- The skin between the toes was stretched as a result of this and, with time, large membranes are formed.
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