Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020BotanyEcosystemPractice

Proportion of reproductive age group is higher than pre-reproductive groups in

Options

  1. Atriangular age pyramid
  2. Burn-shaped pyramid
  3. Cbell-shaped age pyramid
  4. DMore than one option is correct

Correct answer

B. urn-shaped pyramid

Step-by-step solution

The reproductive age group includes members between 15–45 years of age in humans. In the triangular age pyramid, the pre-reproductive age group is more than the reproductive age group, while in the bell-shaped pyramid, pre-reproductive age group is equal to that of the reproductive age group.

Practice Ecosystem on Quantrex Academy →

More from Ecosystem

Match List I with List II : List I List II A. Productivity I. Gross primary productivity minus respiration losses B. Net primary productivity II. Rate of formation of new organic m 2026Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for : 2026Which of the following statements are correct ? (a) Energy flow from producers to consumers is unidirectional (b) Energy pyramid can never be inverted (c) Transfer of energy follow 2026Which of the following are primary consumers in a food chain ? 2026Match List I with List II : List I List II A. Decomposition I. Accumulation of dark coloured amorphous colloidal substance B. Detritus II. Release of inorganic nutrients by the act 2026Which of the following is the unit of productivity of an Ecosystem? 2025Given below are two statements: Statement I : The primary source of energy in an ecosystem is solar energy. Statement II : The rate of production of organic matter during photosynt 2025Given below are two statements: Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd 2025 Full Ecosystem list All NTA Abhyas NEET PYQs