Population Test
Population
This is online test 02 for CBSE class 12 Biology Organisms and Populations (Population).. There are 10 questions in this test with each question having around four answer choices.
Questions & Answers
1
Age groups among human population includes all except:
- AReproductive
- BPre-reproductive
- CPost-reproductive
- DEmbryonic phase groupCorrect
2
“In Competition, the superior competitor eliminates the inferior one”, this statement is called:
- AAllen’s rule
- BGause’s principleCorrect
- CAll the these
- DDarwinian fitness
3
Diapause is shown by:
- AGround squirrels and polar bears
- Bsnails and silkworm
- CHelix and salamanders
- DMonarch butterfly and silk wormCorrect
4
An example of predation is :
- APenicilliumwhose toxins kill bacteria
- BCuckoo laying eggs in crow’s nest
- CBiological control of pest populationCorrect
- Dnone of the these
5
The term Darwinian fitness among populations living together signifies :
- AReproductive fitnessCorrect
- BPopulation density
- CGrowth fitness
- DCarrying capacity
6
Mediterranean orchid Ophrysensures pollination by :
- ASexual deceit and co-evolution
- BBrood parasitism
- CCo-evolution, sexual deceit and pseudo-copulationCorrect
- DPseudocopulation only
7
Which should be considered more realistic growth model :
- AVerhulst-Pearl logistic growthCorrect
- BGeometric growth
- Cnone of these
- DExponential growth
8
Phytophagous insects will be categorized as :
- ACompetitors
- BParasites
- CVectors
- DPredatorsCorrect
9
Species facing competition might evolve mechanism that promotes co-existence rather than exclusion and that mechanism can be
- ACompetitive release
- BResource partitioningCorrect
- CInterspecific competition
- DIntraspecific competition
10
Migration is an adaptation that should be categorised under :
- AAnatomical attribute
- BPhysiological attribute
- CBehavioural attributeCorrect
- DMorphological attribute