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प्रश्न
Struggle between cow and cow to get grass is called ______.
विकल्प
Inter-specific struggle
Environmental struggle
Struggle against natural calamities
Intra-specific struggle
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उत्तर
Struggle between cow and cow to get grass is called Intra-specific struggle.
Explanation:
Intra-specific struggle occurs when the members of the same species fight for the same resources in an ecosystem. Inter-specific struggle occurs when the members of two separate species share the same resources in the same area.
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संबंधित प्रश्न
Explain the following:- Speciation
"Natural selection and speciation leads to evolution." Justify this statement.
List four factors responsible for speciation.
What is meant by a species?
Define 'natural selection'.
New species may be formed if:
- DNA undergoes significant changes in germ cells
- chromosome number changes in the gamete
- there is no change in the genetic material
- mating does not take place
One of the following has not been produced from wild cabbage by the process of artificial selection. This one is :
(a) kohlrabi
(b) cabbage
(c) spinach
(d) kale
List any two factors that could lead to speciation.
Read the following statement and justify the same in your own words with the help of a suitable example.
Geographical and reproductive isolation of organisms gradually leads to speciation.
