Miscellaneous Questions Test

Miscellaneous Questions

This is online test 02 for CBSE class 12 Biology Organisms and Populations (Miscellaneous Questions).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Shrew, rat and rabbit living together in a grassland exhibit:
  • A
    neutralism
    Correct
  • B
    commensalism
  • C
    amensalism
  • D
    mutualism
2
Mammals from Colder climates generally have shorter ears and limbs to minimise heat lossindicates: .
  • A
    Allen’s rule
    Correct
  • B
    Edge species
  • C
    Shelford’s law of tolerance
  • D
    Gause’s population exclusion principle
3
Echolocation in bats helps :
  • A
    none of the above
  • B
    to adapt for cold
  • C
    to locate their path in dark
    Correct
  • D
    to get camouflage
4
Gambusiaeating mosquito larvae is an application of :
  • A
    parasitic life
  • B
    Competition
  • C
    scavenging
  • D
    biological control
    Correct
5
Eudynamys laying eggs in nest of crow indicates:
  • A
    ectoparasitism
  • B
    mutualism
  • C
    endoparasitism
  • D
    social parasitism
    Correct
6
Which of the following should not be characteristic feature of any xerophytes?
  • A
    leaves reduced into spines
  • B
    sunken stomata
  • C
    CAM
  • D
    absence of the cuticle
    Correct
7
If the body temperature of any homeotherm falls or rises then it would become:
  • A
    Resistant
  • B
    Ill
    Correct
  • C
    more active
  • D
    less active
8
If vital index is >100 then the population will:
  • A
    increase showing positive growth
  • B
    decrease showing negative growth
    Correct
  • C
    decrease showing positive growth
  • D
    remain static showing zero growth
9
Studies had revealed that human population growth curve is:
  • A
    U-shaped
  • B
    J-shaped
  • C
    S-shaped
    Correct
  • D
    none of these
10
Actual birth rate under environmental conditions is much less and is thus also called:
  • A
    biotic potential
  • B
    Realisednatality
    Correct
  • C
    potential natality
  • D
    vital index