how do you call in short the Lamarck's theory of evolution who disapproved it initially and how - Science - Heredity and Evolution

Question

how do you call in short the Lamarck's theory of evolution ? who
disapproved it initially and how ?

Jahirul Mazumder · Accepted Answer

Dear
Student
Please find below
the solution to the asked query

Jean Baptist Lamarck was a French scientist who gave a theory of
evolution in 19th century In his theory he stated two
facts –

Use and disuse: the body parts or organs that are not being
used gradually disappear whereas the parts that are in vigorous use
develop more For example, the neck of giraffe grew taller by
vigorous use of it for eating leaves from taller trees
Inheritance of acquired characters: The characters acquired by
an organism during the lifetime can be automatically passed to its
children For example, the long neck of giraffe which is acquired
for reaching taller branches is inherited from one generation to
another

It
was August Weisman whose experiment on mouse tail had disproved the
theory of use and disuse of Lamarck 
It was proved by cutting the tail of mouse continuously for 20
generations But every time the offspring of tailless mouse took
birth with tail This proves that the loss of tail was an acquired
character and it could not be transferred to the next
generation 
Further several genetic experiments had also confirmed the result
of Weisman’s experiment

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how do you call in short the Lamarck's theory of evolution ? who disapproved it initially and how ?