Home
Class 12
BIOLOGY
Define population and community....

Define population and community.

Text Solution

Verified by Experts

Population:
A population can be defined as a group of individuals of the same species residing in a particular geographical area at a particular time and functioning as a unit. For example, all human beings living at a particular place at a particular time constitute the population of humans.
Community:
A community is defined as a group of individuals of different species, living within a certain geographical area. Such individuals can be similar or dissimilar, but cannot reproduce with the members of other species.
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    NCERT BANGLISH|Exercise QUESTIONS|14 Videos

  • PRACTICE PAPER

    NCERT BANGLISH|Exercise All Questions|149 Videos

Similar Questions

Explore conceptually related problems

Population is

[A] : The community that ends in a succession is known as climax community . [R] : For a species population in climax community to be stable , there must be a balance between natality and mortality .

In a growing population of a country ,

Population day is

Define biotic community. Who coined the term biocoenosis for biotic community and list two properties of biotic community.

The population of a country doubles in 50 years. Assuming that the rate of increase of population is proportional to the number of inhabitants, in how many years would the population becomes three times ?

The stratification pattern in a community is well illustrated by a

Population density is the

The present population of a city is 26250. If the population increases at the rate of 4% every year, then let's find what will the population of the city be next year. Also, let's find what the population will be after two years.

The population of a city increases by 5% per annum. If the present population of a city be 370440 then what was its population before 3 years?

NCERT BANGLISH-ORGANISMS AND POPULATIONS-QUESTIONS
  1. How is diapause different from hibernation?

    Text Solution

    |

  2. If a marine fish is placed in a fresh water aquarium, will the fish be...

    Text Solution

    |

  3. Define phenotypic adaptation. Give one example.

    Text Solution

    |

  4. Most living organisms cannot survive at temperature above 45^(@)C^(@)...

    Text Solution

    |

  5. List the attributes that populations but not individuals possess.

    Text Solution

    |

  6. If a population growing exponentially double in size in 3 years, what ...

    Text Solution

    |

  7. Name important defence mechanisms in plants against herbivory.

    Text Solution

    |

  8. An orchid plant is growing on the branch of mango tree. How do you des...

    Text Solution

    |

  9. What is the ecological principle behind the biological control method ...

    Text Solution

    |

  10. Distinguish between the following: (a) Hibernation and Aestivation ...

    Text Solution

    |

  11. Write a short note on : (a) Adaptations of desert plants and animals...

    Text Solution

    |

  12. Define decomposition and describe the processes and products of decomp...

    Text Solution

    |

  13. Give an example for: (a) An endothermic animal (b) An ectotherm...

    Text Solution

    |

  14. Define population and community.

    Text Solution

    |

  15. Define the following terms and give one example for each: (a) Comme...

    Text Solution

    |

  16. With the help of suitable diagram describe the logistic population gro...

    Text Solution

    |

  17. Select the statement which explains best parasitism. (a) One organ...

    Text Solution

    |

  18. List any three important characteristics of a population and explain.

    Text Solution

    |