According to Lamarckism, new needs produce modifications of the existing organs and formation of new organs. It is known as inheritance of acquired characters.

Weismann proposed germplasm theory.

Hardy Weinberg Principle states that in a small randomly mating population, allelic frequencies remain constant over generation to generation.  

Lamarck proposed his theory of inheritance of acquired characters in the book titled 'Philosophie zoologique'.

If new species develops from a geographically isolated population, it is termed as allopatric speciation.

Theory of chemical evolution of life is the modern view on origin of life by a series of chemical reactions.

Mutation is the ultimate source of organic variation.

Tendril in cucurbit and thorn in citrus are homologus and have the same origin but different functions.

In the experiment to prove chemical evolution of life, Miller used H₂,N₂, CH₄, NH₃ etc. and obtained aminoacids.

Theory of panspermia explains that life spores arrived on the earth from some other planets.

Theory of chemical evolution of life was experimentally proved by Urey and  Miller.

Formation of different  genotype in the new settlement when a small group of population  finds a new   settlement is called Founder effect.

'Origin of life' was written by A.I .Oparin.

Many mosquitoes are now resistant to DDT because of natural selection i.e., previously resistant forms survived and reproduced better mosquitoes than the  non-resistant forms.

Malthus  gave the principle that man tends to multiply more rapidly than food supply.

Industrial melanism was exhibited by peppered moth (Biston betularia).

'Devonian period' was the age of fishes.

C. Darwin wrote the book 'Origin of species'.

Fossils are commonly found  in Sedimentary rocks.

Incisors are the biting teeth in man.

Dodo has recently become extinct from Mauritius.It was a bird and became extinct due to distruction of its habitat by man.

Egg laying mammals have evolved from reptiles.

Atavism is the reappearance of ancestoral characters in the descendants. Atavism is not a factor which  affects Hardy Weinberg equilibrium.

Big bang theory is  related with origin of earth.

The fossil Archaeopteryx is the connecting link between reptiles and birds.