Answer
Verified
398.1k+ views
Hint: The changing environmental conditions brought about different types of adaptation in various organisms.
These environmental conditions, natural processes do change all of a sudden within just a thousand years. It takes much more time because it is gradual.
Complete answer:Charles Lyell, a Scottish Geologist presented the idea that some natural processes which are still operating with the same intensity had shaped Earth.
James Hutton also contributed to this idea and proposed that the environment changes over time and individuals adapt to the changes accordingly. Both of them supported that the age of Earth is millions or billions of years old.
The processes that lead to changes in the organisms can be used to determine Earth’s age.
Also, the same processes cannot be completed within a few thousand years.
The organisms which are better adapted to such changes or natural processes survive, reproduce and the changes in them become heritable.
This idea is referred to as ‘natural selection’ by Charles Darwin.
He also concluded that natural selection is a slow and gradual process which brings variation in organisms and contributes to formation of new species, i.e. speciation. Natural selection is the most important concept of Darwinism.
So, the correct answer is ‘Darwin proposed natural selection as a slow and gradual process’.
Note:Charles Lyell and James Hutton were not really evolutionists.
They were Geologists who contributed their ideas to forward the fact that the Earth was much older. They opposed the belief of the scientific community that Earth was just a few thousand years old.
These environmental conditions, natural processes do change all of a sudden within just a thousand years. It takes much more time because it is gradual.
Complete answer:Charles Lyell, a Scottish Geologist presented the idea that some natural processes which are still operating with the same intensity had shaped Earth.
James Hutton also contributed to this idea and proposed that the environment changes over time and individuals adapt to the changes accordingly. Both of them supported that the age of Earth is millions or billions of years old.
The processes that lead to changes in the organisms can be used to determine Earth’s age.
Also, the same processes cannot be completed within a few thousand years.
The organisms which are better adapted to such changes or natural processes survive, reproduce and the changes in them become heritable.
This idea is referred to as ‘natural selection’ by Charles Darwin.
He also concluded that natural selection is a slow and gradual process which brings variation in organisms and contributes to formation of new species, i.e. speciation. Natural selection is the most important concept of Darwinism.
So, the correct answer is ‘Darwin proposed natural selection as a slow and gradual process’.
Note:Charles Lyell and James Hutton were not really evolutionists.
They were Geologists who contributed their ideas to forward the fact that the Earth was much older. They opposed the belief of the scientific community that Earth was just a few thousand years old.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
Using the following information to help you answer class 12 chemistry CBSE
Which of the following would not be a valid reason class 11 biology CBSE
Why should electric field lines never cross each other class 12 physics CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Summary of the poem Where the Mind is Without Fear class 8 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Write an application to the principal requesting five class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE