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CSS MCQs

Civil Superior Services — Complete MCQ Bank

58 Questions
Exam Preparation Guide

How to prepare for CSS

CSS is Pakistan’s premier federal competitive examination. Strong preparation requires conceptual clarity, broad general knowledge and consistent practice across compulsory and optional areas.

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51
Biology Hard Uploaded: 14 Jul 2026

Which type of white blood cell produces antibodies against specific pathogens?

  • ANeutrophils
  • BB lymphocytes
  • CMonocytes
  • DEosinophils
52
Biology Medium Uploaded: 14 Jul 2026

What is the process by which white blood cells engulf and digest bacteria and foreign particles?

  • APhagocytosis
  • BEndocytosis
  • COsmosis
  • DPinocytosis
53
Biology Medium Uploaded: 14 Jul 2026

Which type of immunity is present from birth and provides a non-specific first line of defence?

  • AAcquired immunity
  • BActive immunity
  • CPassive immunity
  • DInnate immunity
54
Biology Hard Uploaded: 14 Jul 2026

What is the scientific study of fungi called?

  • ABacteriology
  • BVirology
  • CMycology
  • DBotany
55
Biology Medium Uploaded: 14 Jul 2026

What is the process by which species change over time through natural selection?

  • AAdaptation
  • BEvolution
  • CMutation
  • DSpeciation
56
Biology Medium Uploaded: 14 Jul 2026

What is the term for the variety of life on Earth including all species ecosystems and genetic variation?

  • AEvolution
  • BBiodiversity
  • CEcology
  • DTaxonomy
57
Biology Medium Uploaded: 14 Jul 2026

What is the term for the genetic makeup of an organism?

  • APhenotype
  • BKaryotype
  • CGenotype
  • DGenome
58
Biology Medium Uploaded: 14 Jul 2026

What is the term for the physical appearance or observable characteristics of an organism?

  • AGenome
  • BGenotype
  • CKaryotype
  • DPhenotype