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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

How many milky teeth or primary teeth does a human have?
A 33
B 20
C 15
D 32
Correct Answer: 20
At level above _____ , sound turns into harmful noise pollution?
A 80db
B 30db
C 100db
D 120db
Correct Answer: 80db
Kranz anatomy is a characteristic feature of_________?
A C4 plants
B C3 plants
C C2 plants
D CAM plants
Correct Answer: C4 plants
Smooth muscles, cardiac muscles and glands are regulated by:
A Central nervous system
B Parasympathetic nervous system
C Sympathetic nervous syetem
D Autonomous nervous system
Correct Answer: Autonomous nervous system
The number of alveoli in human lungs is estimated to be around:_________?
A 150 millions
B 500 millions
C 800 millions
D 1 billion
Correct Answer: 500 millions
New alleles can be introduced into a population’s gene pool by:_________?
A Mutation
B Natural selection
C Gene flow
D Both A & C
Correct Answer: Both A & C
Among the following which one is a diploblastic organism?
A Hydra
B Crabs
C Squids
D Earthworm
Correct Answer: Hydra
Which one of the following toxic metals is extensively present in newspaper?
A Mg
B Cd
C Pb
D Hg
Correct Answer: Pb
Which of the following viruses has caused thousands of deaths globally as an ’emergent’ virus?
A MERS
B SARS-CoV-2
C OC43
D HKUt
Correct Answer: SARS-CoV-2
Non flowering plants are also called plant_________?
A coniferous
B Abortic
C Green
D None of these
Correct Answer: coniferous
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