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प्रश्न
What is species and speciation?
उत्तर
- Species is a group of organisms that can produce fertile individuals through natural reproduction.
- Speciation is the formation of new species of plants and animals as an effect of evolution.
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संबंधित प्रश्न
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
"Natural selection and speciation leads to evolution." Justify this statement.
Name one reptile in given case where higher incubation temperature leads to the development of :male progeny.
Name two human traits which show variation.
The palisade cells of a species of plant contain 28 chromosomes. How many chromosomes will there be in each gamete produced by the plant?
(a) 56
(b) 28
(c) 14
(d) 4
Select the group which shares the maximum number of common characters.
A plant has two varieties, one with red petals and the other with white petals. When these two varieties are cross-pollinated, all the offsprings have red petals?
(a) Which gene is dominant?
(b) Choose suitable letters to represent the two genes.
Name an animal having rudimentary eyes.
Name the ancestor of the following :
Broccoli, Kohlrabi, Kale
Name the famous book written by Charles Robert Darwin.
Choose the one term from the following which includes the other three :
broccoli, wild cabbage, cauliflower, cabbage
Fill in the following blank with suitable word:
Broccoli has evolved from .............. by the process of artificial selection.
State the various factors which could lead to the formation of new species.
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.
Define speciation according to A.E. Emerson and explain its types giving suitable examples.
The theory of evolution of species by natural selection was given by
Cichlid fishes in Lake Victoria are representatives of ______ type of speciation.
Add a note on sympatric speciation.
