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NTS MCQs

National Testing Service — Complete MCQ Bank

1,084 Questions
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NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

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161
Biology Medium

What is the term for organisms that cannot make their own food and must consume other organisms?

  • AAutotrophs
  • BHeterotrophs
  • CProducers
  • DChemotrophs
Permalink
Correct Answer: Option B — Heterotrophs
Explanation: Heterotrophs are organisms that cannot synthesise their own food and must obtain energy and organic nutrients by consuming other organisms and include animals fungi and most bacteria.
Submitted by: PaperMCQs
162
Biology Medium

What is the term for organisms that can make their own food through photosynthesis?

  • ADecomposers
  • BConsumers
  • CHeterotrophs
  • DAutotrophs
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Correct Answer: Option D — Autotrophs
Explanation: Autotrophs are organisms that produce their own organic food from inorganic substances using energy from sunlight through photosynthesis or from chemicals through chemosynthesis.
Submitted by: PaperMCQs
163
Biology Medium

Which type of reproduction involves only one parent and produces genetically identical offspring?

  • ASexual reproduction
  • BBudding only
  • CCross-pollination
  • DAsexual reproduction
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Correct Answer: Option D — Asexual reproduction
Explanation: Asexual reproduction involves a single parent producing genetically identical offspring through processes such as binary fission budding fragmentation or vegetative propagation.
Submitted by: PaperMCQs
164
Biology Easy

Which scientist proposed the theory of evolution by natural selection?

  • AGregor Mendel
  • BLouis Pasteur
  • CCharles Darwin
  • DAristotle
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Correct Answer: Option C — Charles Darwin
Explanation: Charles Darwin proposed the theory of evolution by natural selection in his 1859 book On the Origin of Species explaining how species change over generations through differential reproduction.
Submitted by: PaperMCQs
165
Biology Medium

Which vitamin is essential for the clotting of blood?

  • AVitamin A
  • BVitamin C
  • CVitamin E
  • DVitamin K
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Correct Answer: Option D — Vitamin K
Explanation: Vitamin K is essential for blood clotting as it activates several clotting factors in the coagulation cascade and its deficiency can lead to excessive bleeding.
Submitted by: PaperMCQs
166
Biology Easy

What is the largest organ in the human body?

  • ASkin
  • BLiver
  • CLungs
  • DHeart
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Correct Answer: Option A — Skin
Explanation: The skin is the largest organ of the human body covering the entire external surface and functions as a protective barrier regulating temperature and enabling sensation.
Submitted by: PaperMCQs
167
Biology Easy

Which organ in the human body is responsible for pumping blood throughout the body?

  • AHeart
  • BLungs
  • CLiver
  • DKidney
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Correct Answer: Option A — Heart
Explanation: The heart is a muscular organ that pumps blood throughout the body via the circulatory system supplying oxygen and nutrients to tissues and removing waste products.
Submitted by: PaperMCQs
168
Biology Easy

What is the scientific study of heredity and genetic variation called?

  • AEcology
  • BBiochemistry
  • CGenetics
  • DCytology
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Correct Answer: Option C — Genetics
Explanation: Genetics is the branch of biology that studies heredity and genetic variation in organisms exploring how traits are passed from parents to offspring through genes.
Submitted by: PaperMCQs
169
Biology Medium

Which blood group is known as the universal recipient?

  • AO negative
  • BAB positive
  • CA positive
  • DB positive
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Correct Answer: Option B — AB positive
Explanation: AB positive blood group is the universal recipient because individuals with this blood type can receive blood from donors of any ABO and Rh blood group.
Submitted by: PaperMCQs
170
Biology Medium

Which blood group is known as the universal donor?

  • AAB positive
  • BA negative
  • CB negative
  • DO negative
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Correct Answer: Option D — O negative
Explanation: O negative blood is the universal donor type because it lacks A B and Rh antigens on red blood cells making it compatible for transfusion to recipients of any blood type.
Submitted by: PaperMCQs
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