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Which of the following factors influence...

Which of the following factors influence population density under normal conditions ?

A

Deaths

B

Immigration

C

Emigration

D

Both (a) and (c)

Text Solution

Verified by Experts

The correct Answer is:
A
Under normal condition births and deaths influence density of a population the other two factors being only active under special condition
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NCERT FINGERTIPS-ORGANISMS AND POPULATION-Organisms And Population
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  2. If N = population density at time t, then population density at time t...

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  3. Which of the following factors influence population density under norm...

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  4. Which of the following statements is/are incorrect ?

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  5. Exponential growth is observed in a population when

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  6. In a population per capita birth rate is 0.15 and per capita death rat...

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  7. The birth and death rates of four countries are given below. Which one...

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  8. Which of the following equations corretly represents the exponential p...

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  9. Which of the following statements is correct ?

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  10. The maximum possible number of individuals that a habitat can support ...

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  11. Which of the following equations correctly represents Verhulst-Pearl l...

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  12. The population growth is generally described by the following equation...

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  13. Study the population growth curves (A and B) in the given graph and se...

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  14. Which of the following statements is correct ?

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  16. Refer to the given table. If '+' sign has been assigned for beneficial...

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  17. Refer to the given table that summarises the interactions between two ...

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  18. Which type of interaction is being shown in the giben figure ?

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  19. Which of the following is an advantage of predation ?

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  20. Read the following statements and select the correct option. Stateme...

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