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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

The resolving power of electric microscope is____________?

A 0.2 mm
B 0.2 nm
C 0.2 m
D none of these
Correct Answer: 0.2 nm

The number of chromosomes in human cell is_____________?

A 48
B 44
C 46
D 26
Correct Answer: 46

The organs of locomotion in annelids are__________?

A Muscles
B Hydrostatic skeleton
C Parapodia
D Setae
Correct Answer: Parapodia

Which of following system is segmentally arranged in annelids?

A Excretory system
B Digestive system
C Criculatory system
D Nervous system
Correct Answer: Criculatory system

Which system is present in nematodes?

A Sac – like digestive system
B Tube – like digestive system
C Circulatory system
D Respiratory system
Correct Answer: Tube – like digestive system

Pin warm is common name used for__________?

A Rhabditis
B Enterobius vermicularis
C Ancylostoma duodenale
D Taenia solium
Correct Answer: Enterobius vermicularis

True metamorphosis is not present in________?

A Crustacea
B Insecta
C Arachnida
D Myriapoda
Correct Answer: Arachnida

Prechordates is another name used for___________?

A Echinoderms
B Hemichordates
C Vertebrates
D Chordates
Correct Answer: Hemichordates

Mantle in molluscs is present over____________?

A Head
B Ventral muscular foot
C Dorsal visceral region
D All of these
Correct Answer: Dorsal visceral region

__________ are believed to have common origin with annelids.

A Nematods
B Arthropods
C Molluscs
D None of these
Correct Answer: Arthropods
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