Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 20 of 150)

Attempt Biology Quiz
Which of the following is the correct sequence in the biological method?
A. Observation?hypothesis?law?theory
B. Observation?hypothesis?deduction?testing of deduction
C. Hypothesis?observation?deduction?testing of deduction
D. Law?theory?deduction?observation
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Amphibians are considered to be evolved from___________?
A. Newts
B. Varanope
C. Dipnoi
D. Hagfishes
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Enterobius vermicularis is commonly known as____________?
A. Flatworm
B. Pinworm
C. Hook worm
D. Tapeworm
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Red to orange pigments are_____________?
A. Carotenes
B. Carotenoids
C. Xanthophylls
D. Chlorophyll
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Animals of which class of arthropoda are present everywhere_____________?
A. Crustacean
B. Insecta
C. Arachnida
D. Myriapoda
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Gaseous exchange in birds occurs at level of_______________?
A. Alveoli
B. Air sacs
C. Bronchi
D. Parabronchi
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______________ of earth surface is covered with water?
A. 10%
B. 30%
C. 75%
D. 90%
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An antibody is made of _________ polypeptide chains?
A. 1
B. 2
C. 3
D. 4
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95% of the cytoplasm of RBCs is____________?
A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
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_________________ cells of phloem are directly involved in transport of organic solutes?
A. Parenchyma
B. Companion cell
C. Tracheid
D. Sieve element
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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
ضدی، بدکار، سنگدلی

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