Opening and closing of stomata is also regulated by ___...? Mcqs

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Opening and closing of stomata is also regulated by ___...?

(A) Epidermal cells
(B) Guard cells

(C) Root hair cells
(D) Mesophyll cells

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Each seed is covered on the outside by a _______, which is also known as _______....?

(A) Embryo, Endosperm
(B) Endosperm, Pericarp

(C) Seed coat, Testa
(D) Seedling, Radicle

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Most of the living things use O2 to produce ______...?

(A) ATP
(B) Alcohol

(C) Organic acid
(D) Ecological pyramid

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Insulin drug was discovered by____________...?

(A) Charles Herbert Best
(B) Prof John James Rickard Macleod

(C) Sir Frederick Grant Banting
(D) Leonard Thompson

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Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density...?

(A) Graham’s Law
(B) Gay-Lussac’s law

(C) Boyle’s law
(D) None of these

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Anything that occupies space and has mass is called...?

(A) Mass
(B) Force

(C) Volume
(D) Matter

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What is the body’s natural or acquired ability to resist certain diseases...?

(A) Immunity
(B) Endocrine

(C) Exocrine
(D) All of above

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EEG is used for diagnosing ailments connected with...?

(A) Heart
(B) Brain

(C) Kidneys
(D) Lungs

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Which mineral builds red blood cells and it is also involved in the building of bones...?

(A) Magnesium
(B) Sodium

(C) Copper
(D) Iodine

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In which object, do not form shadows...?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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