Advertisements
Advertisements
प्रश्न
What is a species?
Advertisements
उत्तर
A species is a group of organisms that can produce fertile individuals through natural reproduction.
APPEARS IN
संबंधित प्रश्न
Struggle between cow and cow to get grass is called ______.
Explain the following:- Speciation
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Only variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?
"Natural selection and speciation leads to evolution." Justify this statement.
Which of the following represent tall plants and which represent short plants (or dwarf plants)?
Tt
Give a reason for your choice (The symbols have their usual meaning).
Name two human traits which show variation.
How does the creation of variation in a species ensure its survival
A plant with two 'small' genes breeds with a plant with two 'tall' genes to produce :
(a) small plants and tall plants in the ratio 1 : 3
(b) all small plants
(c) all tall plants
(d) tall plants and small plants in the ratio 3 : 1
What name is given to the sequence of gradual changes over millions of years in which new species are produced?
Choose the one term from the following which includes the other three :
broccoli, wild cabbage, cauliflower, cabbage
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
State the various factors which could lead to the formation of new species.
Which of the following statement is incorrect with respect to variations?
(a) all variations in a species have equal chance of survival
(b) change in genetic composition results in variations
(c) selection of variations by environmental factors forms the basis of evolutionary process
(d) variations are the minimum in asexual reproduction
State and define three factors responsible for the rise of a new species.
Define speciation according to A.E. Emerson.
Cichlid fishes in Lake Victoria are representatives of ______ type of speciation.
