Biology Top 100 Repeated MCQs
MDCAT · NUMS · FSc · Entry Test — most asked Biology questions with answers
Most searched Biology prep on MCQsAll
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These Biology MCQs are picked from high-yield FSc chapters and mix sets — the kind of questions that appear again and again in MDCAT, NUMS, and board exams. Use page navigation below to practice all 100 MCQs, then try the Biology mock test or the Biology topical quiz .
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#57 The first organisms that oxygenated the atmosphere:
A) Cyanobacteria B) Photoautotrophic organisms C) Anaerobic organisms D) All of the above
#58 Tissue organization is missing in protozoa and found in:
A) Parazoa
B) Metazoa
C) Sporozoa
D) Monera
#59 Small inestine is divided into three portions, duodenum, jejunum and
A) Caecum
B) Rectum
C) Colon
D) Ileum
#60 Right atrio-ventricular aperture is guarded by
A) Bicuspid valve
B) Tricuspid valve
C) Tetracuspid valve
D) Semilunar valves
#61 Sweat contains salt and enzymes
A) Amylases
B) Lysozymes
C) Catalase
D) Kinase
#62 The amount of CO2 / 100ml venous blood
A) 60ml
B) 70ml
C) 54ml
D) 55ml
#63 Any change in the environment that produces a response in an organism is called
A) Antigen
B) Effector
C) Stimulus
D) Sensor
#64 In human, coccyx is formed by the function of _________ vertebrae
A) 3
B) 4
C) 5
D) 6
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Most searched Biology prep on MCQsAll
Jump straight to high-yield MCQs, mock tests, and notes for MDCAT, NUMS, and FSc.
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