A hydrogen bond is an intermolecular force (IMF) that forms a special type of dipole-dipole attraction when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons.

TLS Online TPP Program

#Id: 7033

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 7034

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 7035

#Unit 11. Evolution and Behavior

Neo-Lamarckism - August Weismann cut off the tails of mice for many generations and showed that this mutilation had no effect on the tail length of their descendants

TLS Online TPP Program

#Id: 7036

#Unit 11. Evolution and Behavior

 Alfred Russel Wallace - Who was collecting specimens in the Malay Archipelago, had independently conceived of natural selection.

TLS Online TPP Program

#Id: 7037

#Unit 11. Evolution and Behavior

Darwin’s evolutionary theory - Evolution as such is the simple proposition that the characteristics of organisms change over time. 

Geometric increase 

Limited food & Space

Struggle for existence 

Variation 

Natural selection

Inheritance of useful characters

Speciation 

TLS Online TPP Program

#Id: 7038

#Unit 11. Evolution and Behavior

Darwin’s evolutionary theory - Common descent