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Biology

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1536 MCQs

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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.

A Hydrogen bonding

B Transpiration

C Adhesion

D Root prerssure

A 1-2%

B 3-4%

C 5-7%

D 90%

A Cancer

B Asthma

C Tuberculosis

D Emphysema

A Parenchyma

B Companion cell

C Tracheid

D Sieve element

A Hemoglobin

B Enzymes

C Salts

D Other proteins

A 1

B 2

C 3

D 4

A 10%

B 30%

C 75%

D 90%

A Alveoli

B Air sacs

C Bronchi

D Parabronchi

A Crustacean

B Insecta

C Arachnida

D Myriapoda

A Carotenes

B Carotenoids

C Xanthophylls

D Chlorophyll

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According to cohesion-tension theory, tension is created by__________________?

Cuticular transpiration is _____________ of total transpiration?

An infectious disorder of respiratory system is_________________?

_________________ cells of phloem are directly involved in transport of organic solutes?

95% of the cytoplasm of RBCs is____________?

An antibody is made of _________ polypeptide chains?

______________ of earth surface is covered with water?

Gaseous exchange in birds occurs at level of_______________?

Animals of which class of arthropoda are present everywhere_____________?

Red to orange pigments are_____________?