CBSE · Biology
Organisms and Populations
146 practice questions for CBSE — 95 easy · 47 medium · 4 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
Which of the following depicts Exponential growth curve of a population?
MCQ
Identify the correct equation with respect to diagram below, which depicts decrease in population density?
MCQ
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R). Assertion (A) : Most of the poikilothermic animals are thermo-conformers in nature. Reason (R) : Poikilothermic…
MCQ
Which of the following population interaction is represented by the signs: $+$, $0$
MCQ
Select the INCORRECT statement about Opuntia:
MCQ
Various morphological, physiological and behavioural attributes of an organism to survive and reproduce in its habitat is said to be ______
MCQ
Absolute natality is ________ .
MCQ
Select the statement which explains the commensalism best.
MCQ
Desert lizards bask in the sun and absorb heat, when their body temperature drops below the comfort zone, but move into shade, when the ambient temperature starts increasing. This is an example of…
MCQ
Select the INCORRECT pair from the following:
MCQ
Polar bears are restricted to a narrow range of temperature hence they are
MCQ
Conformers are those organisms ________ .