Evolution part 1

One of the possible early sources of energy in the primitive universe

• Co2

• Chlorophyll

• Green plants

• UV rays and light

Abiogenesis theory of origin supports

• Spontaneous generation

• Origin of life from bacteria

• Origin of life from pre existing forms

• Evolution is due to chemical changes

According to oparin which one of the following was not present in primitive atmosphere?

• Methane

• Oxygen

• Hydrogen

• Water vapour

The formation of earth was estimated

• 20 billion yrs ago

• 20000 million yrs ago

• 4500 million yrs ago

• 700 million yrs ago

The first life originated

• On land

• In air

• In water

• All of these

The first non cellular form of life was originated how many billion yrs back

• 3

• 8

• 20

• 1

First living form on earth identified

• Autotroph

• Heterotroph

• Cyanobacteria

• Bacteria

Theory of biogenesis proposed by

• Francesco

• Lazzaro

• Louis pasteur

• Oparin

George cuvier proposed

• Theory of special creation

• Theory of catastrophism

• Cosmozoic theory

• Theory of biogenesis

Primitive atmosphere was very hot because

• Abundent oxygen

• Abundent helium

• Absence of oxygen

• B and C