What is Speciation? - Science


Explain the following:- Speciation

What is speciation?


Solution 1

The formation of a new species by evolution or any genetic modification of the previously existing species in a population is called speciation.

Solution 2

Speciation:- The process by which new species develop from the existing species is known as speciation.

Concept: Speciation
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2014-2015 (March) All India Set 1

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Struggle between cow and cow to get grass is called ______.

Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?

Select the group which shares the maximum number of common characters.

What name is given to the sequence of gradual changes over millions of years in which new species are produced?


Name the scientist who gave the theory of evolution.


 Name five varieties of vegetables which have been produced from 'wild cabbage' by the process of artificial selection.


Choose the one term from the following which includes the other three :
broccoli, wild cabbage, cauliflower, cabbage

Define 'speciation'. Explain how speciation occurs.

The human species has genetic roots in ______

List any two factors that could lead to speciation.

Read the following statement and justify same in your own words with the help of suitable example.

Geographical and reproductive isolation of organisms gradually leads to speciation.

Very short answer question.

Define Speciation.

What is species and speciation?

Define speciation according to A.E. Emerson and explain its types giving suitable examples.

Cichlid fishes in Lake Victoria are representatives of ______ type of speciation.

Add a note on allopatric speciation.

Add a note on sympatric speciation.

Complete the following chart:

  Animals Connecting link between
(1) Balanoglossus ______
(2) ______ Annelida and Arthropoda
(3) Lung fishes ______
(4) ______ Reptiles and mammals
(5) Seymouria ______
(6)   Fishes and Amphibia

Arrange the major events as per geological time scale:

(Origin of conifers, Abundance of trilobites, Diversification of fishes, All types of marine algae, Formation of Forests, Rise of dinosaurs, Extinction of seed ferns, Rise of modern insects.)

  Geological time
Major events
1. Cambrian ______
2. Devonian ______
3. Permian ______
4. Triassic ______


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