The brain of human adult weighs about_________...? Mcqs

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The brain of human adult weighs about_________...?

(A) 1200 – 1300 gm
(B) 1600 – 2000 gm

(C) 500 – 800 gm
(D) 100 – 200 gm

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Pupa of butterfly is also called...?

(A) Chrysalis
(B) Eggs

(C) Larva
(D) Adult

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The _______ is made up of a double helix of two complementary strands....?

(A) RNA
(B) Chromosome

(C) DNA
(D) Protein

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The study of distribution of different living organisms in different regions of the world is called...?

(A) Ecology
(B) Biogeography

(C) Zoogeography
(D) Biotechnology

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The characteristics that an organism inherits from its parents are called...?

(A) Genes
(B) Cells

(C) Traits
(D) Tissues

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Which creature is the symbol of Medicine...?

(A) Cat
(B) Lizard

(C) Snake
(D) None of these

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Root hairs are most important to a plant because they ______...?

(A) Store starch
(B) Contain xylem tissues

(C) Provide a habitat for nitrogen fixing bacteria
(D) Increase the surface area for absorption

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The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...?

(A) 5x10^8m/s
(B) 2.5x10^8m/s

(C) 1.2x10^10m/s
(D) 1.2x10^8m/s

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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The Green House Effect is caused by an excess of ...?

(A) Carbon dioxide
(B) Carbon monoxide

(C) Carbon tetrachloride
(D) None of the above

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