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प्रश्न
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Answer the following:
Give the common name and the scientific name of the insect involved in this phenomenon.
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उत्तर
Common name: Peppered moth.
Scientific name: Biston betularia.
संबंधित प्रश्न
Write a short note based on the information known to you.
Lamarckism
The first scientist who proposed his theory for evolution was ______.
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Answer the following:
The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
(i) Name and explain the said theory.
(ii) Give the name of the scientist who gave this theory.
The characters developed by the animals during their life time, in response to the environmental changes are called ______.
The degenerated wing of a kiwi is an acquired character. Why is it an acquired character?
Observe the following figure and explain the concept.
Observe the figure given below and answer the questions that follow:
- What is the figure depicting?
- What was the reason that the giraffe stretched their neck and forelimbs?
- What is the name of the theory that is being depicted in the figure?
- Who explained the theory?
- What is the conclusion of this theory?
Under the postulate of 'Inheritance of Acquired Characters', how are traits or modifications acquired during an organism's lifetime transmitted to its offspring?
How were webbed feet in swimming birds explained under Lamarck's evidences?
For an acquired trait to be transmitted to the next generation, which of the following cell types would need to be altered?
