GRADUALISM
History🌝🌝
Charles Lyel formulated the philosphy of gradualism
Gradualism According to Darwin👔👔
Difference between spps are often matter of degree and no matter of kind
Who is known for gradualism?🤔🤔
Gradualism.is a school.of thought which claims that throught out the earth history , geological and biological process have operated at rate observed at present .
Definition✨✨
it is the selection and variation that happend more gardually over a short period of time.
:
Hard to notice
Small variation that fit on organism
Changes in slow contant
Few individual h many helpful.trait to survive
Theory of gradualism🙄
it is a biology refers to broadly to a theory that " change of organic life and of the earth itself occur through gradual increments"
Gradualism.in Biology🐏🐐🐪
:
refer primary to a patteren of sustained directional amd incremental evolutionary change over a long period of time during the history of spps.
Pricipal💫💫
Changes occur small steps🏕🏜🏘
Interesting theory true true to some extent👍🏼
Fossil record analysis have shown🦄🐉
Some organism have more rapid change🐈🐆🐴
Example
lineage of Whale🐋🐟🐬
Whale gradually evolved over ten million years ago
From.4 leged mammal.to aquatic mammal
Example 2
Elephant large Ear🐘🐘
A population of elephant develop large ear protect from sun and make them.cool
Lage ear become a physical feature of entire pop
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