Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
41.

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

  • Commensalism

  • Mutualism

  • Amensalism

  • Parasitism


42.

Niche is

  • all the biological factors in the organism's environment

  • the physical space where an organism lives

  • the functional role played by the organism where it lives

  • the range of temperature that the organism needs to live


43.

Match the following Columns

Column I Column II
A. Opuntia 1. Stem thorns
B. Asparagus 2. Phylloclades
C. Citrus 3. Cladodes

  • A B C
    1 2 3
  • A B C
    2 3 1
  • A B C
    3 2 1
  • A B C
    2 1 3

44.

The scientific name of gharial is

  • Naja bun garus

  • Gaviails gangeticus

  • Hemidactylusflavivridis

  • None of the above


Advertisement
45.

Predation and parasitism are which type of interactions.

  • (+, +)

  • (+, 0 )

  • ( -)

  • (+, -)


46.

The ultimate source of energy for a living being is

  • Sunlight

  • ATP

  • Fats

  •  Carbohydrates


47.

Which of these is used to control human population?

  • Estrogen + progesterone

  • IUCD and MTP

  • Tubectomy and vasectomy

  •  All of the above


48.

Which of the following is a total root parasite?

  • Cuscuta

  • Rafflesia

  • Santalum

  • Monotrapa


Advertisement
49.

Which part of the animal virus is not produced in multiple copies?

  • Capsid

  • Proteins

  • Envelops

  • Ribosome


50.

Biotic potential or potential natality means

  • Natural increase of population under ideal/optimum conditions

  • The potential of the organism in a biome

  • Number of organisms in a biome

  • Species of maximum number in a population


Advertisement