Home
Class 12
BIOLOGY
In a pond three were 400 frogs last year...

In a pond three were 400 frogs last year and through reproduction 200 frogs are added taking cunent populaJioll to 600. The birth rate is

A

`0.4`

B

`0.5`

C

`0.6`

D

`0.7`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ORGANISMS AND POPULATIONS

    AAKASH SERIES|Exercise EXERCISE-I (LIFE HISTORY VARIATION)|3 Videos

  • ORGANISMS AND POPULATIONS

    AAKASH SERIES|Exercise EXERCISE-I (POPULATION INTERACTIONS)|47 Videos

  • ORGANISMS AND POPULATIONS

    AAKASH SERIES|Exercise EXERCISE-I (ADAPTATIONS)|13 Videos

  • NEURAL CONTROL AND COORDINATION

    AAKASH SERIES|Exercise EXERCISE-III( PREVIOUS AIPMT / NEET QUESTIONS)|34 Videos

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    AAKASH SERIES|Exercise Exercise - III|27 Videos
AAKASH SERIES-ORGANISMS AND POPULATIONS-EXERCISE-I (POPULATIONS)
  1. Which one of the following organisms reproduces sexually only once in ...

    Text Solution

    |

  2. The number of new individuals produ'6'ed in a unit time, per unit popu...

    Text Solution

    |

  3. In a pond three were 400 frogs last year and through reproduction 200 ...

    Text Solution

    |

  4. The status ofa population, whether it is growing, stable, or declining...

    Text Solution

    |

  5. Organisms represented at the top of an age pyramid are

    Text Solution

    |

  6. In an age pyramid, which age group is represented at the bottom ?

    Text Solution

    |

  7. In a growing population, which age group includes a large number of in...

    Text Solution

    |

  8. Tatal number of individuals per unit area of unit volume is called

    Text Solution

    |

  9. In a population of 2,500 whose intrinsic rate of natural increase (r) ...

    Text Solution

    |

  10. Choose the incorrect statement.

    Text Solution

    |

  11. The size of a population increases if

    Text Solution

    |

  12. Which of the following factor has a negative effect on the population ...

    Text Solution

    |

  13. In a population of a habitat in one year 200 births, 150 deaths, 200 e...

    Text Solution

    |

  14. Exponential growth is observed in a population when

    Text Solution

    |

  15. In population, per capita birth rate is 0.15 and per capita death rate...

    Text Solution

    |

  16. The maximum possible number of individuals that a hahitat can support ...

    Text Solution

    |

  17. The phase of the population growth where natality is equal to mortalit...

    Text Solution

    |

  18. In logistic growth curve, the initial stage of the curve is called

    Text Solution

    |

  19. In the equation N(t)=N(0)e^(tt),'e' is

    Text Solution

    |

  20. Which of the following is an incomplete count to estimate population d...

    Text Solution

    |