Evolution practice · Mixed difficulty

In the evolution of man, several change occurred in the ancestral characters. Which one of
the following changes is irrelevant in this context?

Assertion: Neanderthal man is the intermediate
between Ramapithecus and Homo erectus.

Reason: Neanderthal man, with brain size of 800
cc, used hides to protect their body.

First autotrophs on the primitive earth was/were

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?

Assertion: Homo erectus probably ate meat.

Reason: Homo erectus had a large brain around 900 cc.

Continuity of germplasm’ theory was given by

Industrial melanism is an example of

……… organs shows adaptive radiation.
Complete the given statement with an appropriate option given below

Darwinian ‘natural selection’ of evolution was inspired by

Present concept of evolution is the result of the work by number of scientists:  I. T Dobzhansky,  II. RA Fisher,  III. JBS Haldane,  IV. Charles Darwin, V. Sewall Wright,  VI. Ernst Mayer, VII. Hugo de Vries, VIII. GL Stebbins, IX. Lamarck.  The scientists who contributed to the present concept of evolution are

The correct ages of Universe and Earth are represented by

Organic evolution is also called

Darwin in his ‘natural selection theory’, did not believed in any role of which one of the following in organic evolution?

Anthropogenic actions that leads to evolution is the use of

Who said that organisms develop from pre-existing organisms?

What is the difference between genetic drift and changes drift to the natural selection?

Which of the following in birds indicates their reptilian ancestry?

A microsphere is a …A… collection of organic macromolecules with double layered outer boundary. The term microsphere was given by …B…
Complete the given statement by choosing correct options for A and B with reference to NCERT textbook

According to the heterotroph hypothesis, the first life on the earth was able to

The gases condensed under …A… and formed the galaxies of the present day universe. In the solar system of the milky way galaxy, earth was supposed to have been formed about …B… back. There was no atmosphere …C… on the earth. Water vapour, …D… carbon dioxide and ammonia released from molten mass covered the surface.
Choose the correct option for A, B, C and D to complete the given paragraph with reference to NCERT textbook

Select the correct statement.

Analogous organs appears as the result of

Statement-I: Natural selection fixes the character with adaptive value and operates both in small and larger populations.

Statement-II: Natural selection increases the fitness of an organism by increasing the frequency of adaptive alleles and decreasing the frequency of deleterious alleles.

The first cell like structure was appeared in

Identify the correct statement

Survival of the fittest is the basic principle of a competition. Its importance in organic evolution was explained by

The correct order of the geologic eras, from most ancient to most recent, is

Given below are four statement (A - D) each with one or two blanks. Select the option which correctly fill up the blanks in 2 statements

A) Wings of butterfly and birds looks like and are results id ___(i)___ evolution

B) Miller showed that and ___(i)___, when exposed to electric discharge in a flask resulted in formation of ___(ii)___

C) Vermiform appendix is a ___(i)___ organ and an ___(ii)__ evidence of evolution

D) According to Darwin evolution took place due to ___(i)___ and ___(ii)___ of the fittest

Big-Bang theory attempts to explain the origin of

The branch of science dealing with process of improvement of human race by selective breeding is called: