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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

DNA or RNA of viruses is enclosed in _______________ coat?
A Protein
B Carbohydrate
C Lipid
D DNA
Correct Answer: Protein
All of the following are involved in nitrification except
A Nitrobacter
B Nitrosomonas
C Rhizohium
D All of these
Correct Answer: Rhizohium
Which of the following organisms have Chitin as a major structural component of their cell wall________________?
A Prokaryotae
B Protoctista
C Plantae
D Fungi
Correct Answer: Fungi
What is the characteristic feature of consumers?
A Autotroph
B Heterotroph
C Parasite
D Saprophyte
Correct Answer: Heterotroph
So far over _____________ number of species of animals are known?
A million
B 1 million
C 1
D 2 million
Correct Answer: 1
The greatest diversity of animals in the lake is found in which one of the following zones?
A Limmnetic zone
B Littoral zone
C Profundal zone
D None of these
Correct Answer: Littoral zone
The word which E-Chatton suggested for bacteria and blue green algae was_____________?
A Autotrophs
B Heterotrophs
C Pro-cariotique
D Eu-cariotique
Correct Answer: Pro-cariotique
Scurvy and beri – beri and caused by the deficiency of___________?
A Vitamin B and C
B Vitamin B and D
C Vitamin C and B
D Vitamin A and B
Correct Answer: Vitamin C and B
The structure which has been formed or modified from gill pouches in humans is___________?
A Gills
B Eustachian tube
C Middle ear
D Lungs
Correct Answer: Eustachian tube
Solanum tuberosum is a scientific name of___________?
A Onion
B Amaltas
C Potato
D Tomato
Correct Answer: Potato
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