Give difference Amongest Lamarckism, Darwinism and Mutation Theory.
 

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Properties Lamarckism Darwinism Mutation Theory
$(a)$ Vital force The theory believes that every organism has an internal vital force that tends to increase its size upto a certain limit. Darwinism does. not believe in internal vital force. No internal vital force is involved.

$(b)$ Conscious Reaction

Animals with well developed nervous system react consciously to any change in environment. Darwinism does not involve any conscious reaction. No conscious reaction is belived to take part in the process of evolution.
$(c)$ Appetency The theory considers appetency or desires on the part of animals an important force in the development of modifications. It is not a constituent of the theory. Appetency is not involved.
$(d)$ Use and disuse The organs put to more use are believed to develop more while organs not used begin to degenerate. The theory is silent about use and discuss of organs. The theory is silent about it.

 

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Match the columns :

Column - $I$ Column - $II$
$(1)$   Human embryos have gill $(a)$ Chemical evolution
$(2)$  Oparin and  Haldane $(b)$ Stimulation experiment
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$(4)$  Analogous organ $(d)$ Outogeny repeats phylogeny

 

Evolution is

Identify correct pair