Biology · Science General

Evolution and Biological Adaptation

1,354 Questions

Evolution and biological adaptation focus on natural selection, speciation events, and how organisms adjust to environmental changes over time. These foundational biology concepts appear frequently in general science sections of civil services and school board examinations. Use these questions to study evolutionary theories, ancestral traits, and the fossil record.

Natural selection mechanismsSpeciation event examplesBiological adaptation traitsPanspermia hypothesis conceptsFossil record analysisMate selection theories

Evolution and Biological Adaptation Questions

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

In Galapogos island, Darwin found different varieties of Finches, originated from a common ancestor. The original variety of the Finches ws ____________.

  1. Insectivorous

  2. Vegetarian

  3. Seed eating

  4. Cactus eating
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Darwin's finches are believed to have originated from a common ancestor that was an insectivorous ground-dwelling bird from the mainland.

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Read the following statements:

(i) Coelacanths can be considered as ancestors of modern day frogs and salamanders.

(ii) Darwin's finches are examples of adaptive radiation.

(iii) Adaptive radiation refers to evolution of different species from a common ancestor.

(iv) Flippers of penguins and dolphins are examples of divergent evolution.

How many of the above statements are wrong?

  1. Two

  2. One

  3. Three

  4. Four
Reveal answer Fill a bubble to check yourself
B Correct answer
Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Darwin's theory of natural selection is objected, because it (A) (B) (C) (D) Ans:112 B

  1. stresses upon slow and small variations

  2. explains the adaption of certain inherited characters

  3. stresses on interspecific competition

  4. explains that natural calamities take a heavy annual toll of lives
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Darwin's theory of natural selection was criticized because it could not explain the origin of variations or the mechanism of inheritance. Option B correctly identifies this limitation regarding inherited characters.

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Choose the correct answers from the alternatives given.
Charles Darwins book On the Origin of Species by Means of Natural Selection, was first published in

  1. 1779

  2. 1831

  3. 1859

  4. 1901
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

On the Origin of Species, 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 option is C, 1859.

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Choose the correct answers from the alternatives given.
The evolutionary importance of ...............  was apparent to Darwin, but not to Linnaeus.

  1. cladistics

  2. radiometric dating

  3. variation

  4. typology
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lamarck is best known for his "Theory of Inheritance of Acquired Characteristics", that is If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. But according to Darwin, variation helps the species to survive in unfavourable condition environment.

So the correct option is C, variation.

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Choose the correct answers from the alternatives given.
Which of the following labels best fits Darwin ?

  1. Mendelian

  2. Gradualist

  3. Population geneticist

  4. Catastrophist
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The definition of gradualism is the slow and gradual changes that happen within an organism or society to make a better environmental fit for animals and humans. Gradualist label fit for Darwin theory.

So the correct option is B, Gradualist.

Multiple choice zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

Choose the correct answers from the alternatives given .
A biogeographical evidence in favour of organic evolution is provided by

  1. Archaeopteryx

  2. modern horse

  3. Darwins finches

  4. pythons
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Organic evolution is the events involved in the evolutionary development of a species. It means that all life descended from other life, although features may have changed dramatically along the way. Organic evolution involves modifications to existing species, not the development of new ones. Darwin's finch is an example, which all evolved from a common species. Gradually these 13 species got modified and adapted to their particular niche and feeding habit within Galapagos island.

So, the correct option is 'Darwin's finches'.

Multiple choice

Natural Selection is the _______ evolution.

  1. opposite of

  2. precursor to

  3. same thing as

  4. mechanism of
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring; it is the primary mechanism through which evolution occurs.

Multiple choice

In natural selection, what determines if an organism will be likely to survive?

  1. the organism's genes

  2. the organism's intelligence

  3. something in the environment

  4. humans
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Natural selection is driven by the environment. The environment poses challenges (like food scarcity or predators), and organisms with traits that provide an advantage in that specific environment are more likely to survive.

Multiple choice

Which of these is NOT a part of Darwin's theory of Natural Selection?

  1. struggle for existence

  2. variation and adaptation

  3. survival of the fittest

  4. selective breeding
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Darwin's theory of natural selection includes variation, struggle for existence, and survival of the fittest. Selective breeding (artificial selection) is a different process where humans, not the environment, choose the traits.

Multiple choice

What is Social Darwinism?

  1. The idea that some humans were superior than others

  2. survival of the fittest theory

  3. The imperialism of Asia and China

  4. How the Chinese justified their way of life
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Social Darwinism applied the concept of 'survival of the fittest' to human societies, suggesting that some races or nations were naturally superior and destined to dominate others.

Multiple choice natural vegetation and wildlife of india and world resources of india and world general knowledge

What is the term applied to evolution of vegetation so that it becomes increasingly adapted to its environment?

  1. Organic evolution

  2. Plant succession

  3. Climatic climax

  4. Adaptation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plant succession is the process of change in the species structure of an ecological community over time. Through this process, the vegetation of an area becomes increasingly adapted to its environment, eventually reaching a stable climax community.