Biology
Grade-9
Easy
Question
Which of the following concept is proposed by Lamarck?
Use and disuse of organs.
Every cell must come from a pre-existing cell
In the struggle for existence, the fittest would survive
The gametes will carry only one of a pair of contrasting characters.
Use and disuse of organs.
Every cell must come from a pre-existing cell
In the struggle for existence, the fittest would survive
The gametes will carry only one of a pair of contrasting characters.
Hint:
Lamarck proposed the use and disuse of organs.
The correct answer is: Use and disuse of organs.
- Lamarck on use and disuse reflect that the infinitely diversified but slowly changing environment in which the animals of each race have successively been placed has involved each of them in new needs and corresponding alterations in their habits.
- This is a truth that, once recognized, cannot be disputed.
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