Download App

Ecosystems — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems1 Mark
MCQ
Two different species cannot live for long duration in the same niche or habitat. This law is:
  • A
    Allen’s law.
  • B
    Mendel’s law.
  • C
    Gause’s competitive exclusion principal.
  • D
    Weismann’s theory.
✓

Answer

  1. Gause’s competitive exclusion principal.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Ecosystems→Ecosystems — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Which of the following statements is not correct$?$
→
Plasmid $pBR322$ has $PstI$ restriction enzyme site within gene $a m p^{R}$ that confers ampicillin resistance. If this enzyme is used for inserting a gene for $\beta$-galactoside production and the recombinant plasmid is inserted in an $E.coli$ strain
→
Golden age of reptiles is
→
Evolutionary convergence is development of:
→
Theory of Natural Selection was proposed by :
→
Triple antigen vaccine is not used for :
→
Which one of the following organisms reproduces sexually only once in its life time?
→
‘Malaria' a common disease world wide is caused by a
→
Which of the following are the essential sources for releasing in the atmosphere?

$I.$ Burning of wood

$II.$ Volcanic activity

$III.$ Combustion of organic matter

$IV.$ Fossil fuels

Choose the correct option

→
Coenozoic era is known as :
→