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Organisms and Populations — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations5 Marks
Question
  1. Name the two growth models that represent population growth and draw the respective growth curves they represent.
  2. State the basis for the difference in the shape of these curves.
  3. Which one of the curves represents the human population growth at present? Do you think such a curve is sustainable ? Give reason in support of your answer.
✓

Answer

  1. Exponential growth curve , logistics growth curve -

a - Exponential growth curve b - logistic growth curve.
  1. Exponential growth - food resources and space unlimited.
Logistic growth - food resources and space limited.
  1. Exponential growth.
Not sustainable, as resources are limited/carrying capacity.

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