Home
Class 12
BIOLOGY
In a life table, the number of individua...

In a life table, the number of individuals alive at the beginning of the `1^(st)` year interval is 800. During this interval, 200 individuals die. The death rate for this interval is

A

`0.25`

B

`200`

C

`800`

D

`0.2`

Text Solution

Verified by Experts

The correct Answer is:
A

Death rate `= ("Number of deaths")/("Initial number of individuals")`
`= (200)/(800) = (1)/(4) = 0.25`
Promotional Banner

Topper's Solved these Questions

  • ORGANISMS AND POPULATION

    NCERT FINGERTIPS ENGLISH|Exercise HOTS|5 Videos
  • ORGANISMS AND POPULATION

    NCERT FINGERTIPS ENGLISH|Exercise NCERT|20 Videos
  • MOLECULAR BASIS OF INHERITANCE

    NCERT FINGERTIPS ENGLISH|Exercise Molecular Basis Of Inheritance|151 Videos
  • PRACTICE PAPERS

    NCERT FINGERTIPS ENGLISH|Exercise Practice paper|150 Videos

Similar Questions

Explore conceptually related problems

The number of solution of the equation sin theta cos theta cos 2 theta .cos 4theta =1/2 in the interval [0,pi]

The number of solutions of the equation "cos"^(7) theta + "sin"^(4) theta = 1 in the interval (-pi, pi) , is

Find the number of real solution of the equation (cos x)^(5)+(sin x)^(3)=1 in the interval [0, 2pi]

The number of solutions of the equation log_(sqrt2sin x)(1+cosx)=2 in the interval [0, 5pi] is

The number of integral solution of the equation (sgn((x-1)(x-5)))^(x)=1 lying in the interval [-10, 10] is not equal to :

If cos^(-1)|sinx|gesin^(-1)|sinx| , then the number of integral values of x in the interval x in [0, 3pi] are

The number of points at which the function f(x) = (x-|x|)^(2)(1-x + |x|)^(2) is not differentiable in the interval (-3, 4) is ___

The number of solutions of the equation 3^(2sec^(2)x)+1=10.3^(tan^(2)x) in the interval [0,2pi] is

The number of distinct of real roots of the equation tan^(2)2x+2tan2x tan3x-1=0 in the interval [0,(pi)/(2)] is

The number of solution of the equation sin^(3)x cos x+sin^(2)x cos^(2)x+cos^(3)x sin x=1 in the interval [0, 2pi] is equal to

NCERT FINGERTIPS ENGLISH-ORGANISMS AND POPULATION-Organisms And Population
  1. In a pond, last year there were 30 lotus plants. Through reproduction,...

    Text Solution

    |

  2. Parameters related to age structure include

    Text Solution

    |

  3. In a life table, the number of individuals alive at the beginning of t...

    Text Solution

    |

  4. Percentage of individuals of a given age group in a given population i...

    Text Solution

    |

  5. If the age distribution is plotted for a population, the resulting str...

    Text Solution

    |

  6. What does the shape of the given age pyramids reflects about the growt...

    Text Solution

    |

  7. A population in which number of pre-reproductive individuals is very l...

    Text Solution

    |

  8. What does the shape of the given age pyramids (A to C) reflect about t...

    Text Solution

    |

  9. The age structures of a population represents

    Text Solution

    |

  10. The age structures of a population influences population growth becaus...

    Text Solution

    |

  11. If most individuals in a population are young, why is the population l...

    Text Solution

    |

  12. Study the age pyramids given below and select the correct statements r...

    Text Solution

    |

  13. A population with a larger proportion of older individuals than younge...

    Text Solution

    |

  14. An urn shaped population age pyramid represents

    Text Solution

    |

  15. Given figures represent comparative age-sex pyramids for India for the...

    Text Solution

    |

  16. Age-sex sturcture of a population can be depicted in the form of a pyr...

    Text Solution

    |

  17. In a given population of 2000 indivials, 80 births and 125 deaths were...

    Text Solution

    |

  18. Total number of individuals of a species per unti area and per unit ti...

    Text Solution

    |

  19. In some cases, population density is measured in terms of biomass rath...

    Text Solution

    |

  20. Which of the followinf is not an example of using relative density to ...

    Text Solution

    |