Tag: biology

Questions Related to biology

Which book was written by Charles Darwin?

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Origin of species

  2. Species Plantarum

  3. Genera Plantarum

  4. De Naturien Familien

Show answer
Correct Option: A
Explanation:
 Origin of Species Charles Darwin 
 Species Plantarum  Carl Linnaeus
 Genera Plantarum  Carl Linnaeus Armand's Neo
 De Naturien Familien   Armand's Neo

So, the correct answer is 'Origin of Species'

'Origin of Species' was written by :

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Oparin

  2. Weismann

  3. Lamarck

  4. Darwin

Show answer
Correct Option: D
Explanation:

On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life), published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology.

So, the correct answer is 'Darwin'

Most important theory of general biology was proposed by :

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Mendel and Morgan

  2. Beadle and Tatum

  3. Watson and Crick

  4. Darwin and Wallace

Show answer
Correct Option: D
Explanation:

The most important theory of general biology is the theory of evolution by natural selection. In the early 19th century Jean-Baptiste Lamarck (1744 – 1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution. In 1858 Charles Darwin and Alfred Russel Wallace published a new evolutionary theory, explained in detail in Darwin's On the Origin of Species (1859).

So, the correct answer is 'Darwin and Wallace'

Which was not proposed by Darwin?

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Struggle for existence

  2. Natural selection

  3. Genetic drift

  4. Survival of the fittest

Show answer
Correct Option: C
Explanation:

The main concept of Darwin's theory was natural selection. Other main points were High rate of reproduction, Total number almost constant, Struggle for existence, Variations, Survival of the fittest. It didn't had genetic drift. Hence, option C is correct.

Darwin's theory of pangenesis proposes __________.

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Some physical basis of inheritance.

  2. Development of useful organs and degeneration of useful organs.

  3. Increase in organ size with age

  4. Development of organs due to will power.

Show answer
Correct Option: A
Explanation:

In 1868, Darwin put forward the Theory of Pangenesis. According to this theory, every organ of the body produces minute hereditary particles, called gemmules or Pangenes, and they can be carried through the blood into the gametes. It laid emphasis on some basis of inheritance. Hence, Option A is correct. 

Darwin in his 'Natural Selection Theory' did not belive in any role of which one of the following ?

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Parasites and predators as natural enemies.

  2. Survival of the fittest

  3. Struggle for existence

  4. Discontinuous variations

Show answer
Correct Option: D
Explanation:

The main features of Darwin's theory of Natural Selection are as follows - 

  1. Over production
  2. Struggle for existence
  3. Survival of the fittest
  4. Origin of new species
  5. Variations and hereditary
According to Darwin, the variations were continuous. Therefore, Option D is correct option.   

According to Darwin, which one is not of much importance in formation of species?

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Over-production

  2. Survival of the fittest

  3. Struggle for existence and variations

  4. Inheritance of acquired characters

Show answer
Correct Option: D

Darwinism explains all except :

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Within each species there are variations.

  2. Variations are inherited from parents to offspring through genes.

  3. Organisms tend to produce more offspring than can survive.

  4. Organisms with better traits that overcome competition are best suited under the environment.

Show answer
Correct Option: B
Explanation:

One of the major drawbacks of Darwin's theory is the absence of knowledge on inheritance. The genetic basis of evolution, cause of variations was not included in Darwin's 'Origin of Species'. It was only after the discovery of genes and traits by Mendel, genetics could be associated with evolution.

So, the correct answer is 'Variations are inherited from parents to offspring through genes'

Original features of Darwin's finches in Galapagos islands were adapted for :

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Flesh eating

  2. Insect eating

  3. Fish eating

  4. Honey collecting

  5. Seed eating

Show answer
Correct Option: E
Explanation:

The small black birds found on Galapagos islands, which later came to be known as Darwin's finches were originally adapted with seed-eating features. From these many other forms evolved with altered beaks depending on the food habit. This enabled them to become insectivorous and vegetarian finches.

So, the correct answer is 'Seed eating'

The naturalist Charles Darwin was inspired to write "Origin of Species" when the ship in which he was travelling reached :

biology evolution of life darwinism or theories of natural selection darwin's theory of evolution theories of evolution

  1. Hawaii islands

  2. Galapagos islands

  3. Antartica

  4. Great Barrier Reef

Show answer
Correct Option: B
Explanation:

  • Darwin reached the Galapagos islands on HMS Beage while travelling which is of historic importance.
  • During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but perfectly adapted to their environments which led him to ponder the origin of the islands' inhabitants.
  • So, Darwin's visit to the Galapagos Islands had a resounding impact on the formation of his Theory of Natural Selection.
Hence, the correct option is 'Galapagos islands'.