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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

From right ventricle blood is pushed into?
A pulmonary trunk
B brain
C aorta
D body
Correct Answer: pulmonary trunk
The number of species of organisms currently known to science is?
A 3500000
B 35000
C 2500000
D 25000000
Correct Answer: 2500000
The heart is enclosed in a membrane called________?
A pleura
B pericardium
C peritoneum
D epithelium
Correct Answer: pericardium
Communities are ________ collection of organisms?
A Static
B Dynamic
C May be static or dynamic
D None of these
Correct Answer: Dynamic
The arrangement of ________ speaks of the division of labour within cell?
A Molecule
B Subatomic particles
C Atoms
D Organelles
Correct Answer: Organelles
In which animal respiratory surface are found in more than one organ?
A birds
B human
C fish
D frog
Correct Answer: frog
Operculum is present in_____________?
A bony fish
B sea fish
C cartilaginous fish
D none of these
Correct Answer: bony fish
Biological organization is_____________?
A simple
B advance
C complex
D highly complex
Correct Answer: complex
In human body 99% of total mass is formed of_____________?
A 16 Bio-elements
B 12 Bio-elements
C 10 Bio-elements
D 6 Bio-elements
Correct Answer: 6 Bio-elements
Nitrogen is present in___________?
A carbohydrates
B proteins
C lipids
D carbonates
Correct Answer: proteins
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