What regulates the flow of water through the xylem...? Mcqs

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What regulates the flow of water through the xylem...?

(A) Passive transport by the endodermis
(B) The number of companion cells in the phloem

(C) The evaporation of water from the leaves
(D) Active transport by sieve-tube membrane

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The interaction of living organisms with each other and with their environment is...?

(A) Community
(B) Population

(C) Ecosystem
(D) Habitat

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What do you call the same type of species living together in a specific area...?

(A) Community
(B) Ecosystem

(C) Population
(D) Habitat

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Latest MCQs

Rainbow is the best example of _____...?

(A) Refraction of light
(B) Dispersion of light

(C) Spectrum of white light
(D) Reflection of light

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What is the substance that causes undesirable change to the environment...?

(A) Climate Change
(B) Pollution

(C) Pollutant
(D) None

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The autonomic nervous system innervates all of these except...?

(A) Cardiac muscles
(B) Skeletal muscles

(C) Smooth muscles
(D) none

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When a standard is set for a quantity then standard quantity is called ____...?

(A) Unit
(B) Measurement

(C) Quantity
(D) Dimension

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Disolved oxygen (DO) in water should be...?

(A) 400 to 800 ppm
(B) 4000 to 8000 ppm

(C) 0.4 to 0.5 ppm
(D) 4 to 5 ppm

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Which part of the human body contains the most gold...?

(A) Liver
(B) Skin

(C) Toenails
(D) Kidney

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The most splendid and the most magnificent constellation on the sky is...?

(A) Orion
(B) Columbia

(C) Canis Major
(D) Taurus

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