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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

In animals coordination is achieved by means of?

A Nervous system
B Endocrine system
C Respiratory system
D Both A and B
Correct Answer: Both A and B

Haemodialysis means cleaning of____________?

A Urine
B Blood
C Glomerular filterate
D Coelomic fluid
Correct Answer: Blood

A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:

A An organ
B An organism
C A Tissue
D A Cell
Correct Answer: A Tissue

Which one of them is a micro-molecule?

A Polysaccharide
B Protein
C Hemoglobin
D ATP
Correct Answer: ATP

The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:

A An organ
B A molecule
C Tissue
D Both a and c
Correct Answer: A molecule

Oxygen accounts for ____ % of totals human body mass?

A 65%
B 18%
C 10%
D 3%
Correct Answer: 65%

___________ are needed as a source of energy for the vital activities of the body?

A Calcium
B Iron
C Water
D Carbohydrates
Correct Answer: Carbohydrates

Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

A 6
B 16
C 26
D 15
Correct Answer: 6

__________ is essential for the formation of hemoglobin.

A Calcium
B Iron
C Water
D Carbohydrates
Correct Answer: Iron

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?

A Environmental biology
B Social biology
C Human biology
D Both b and c
Correct Answer: Social biology
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