Increase in rate of breathing is due to the following...? Mcqs

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Increase in rate of breathing is due to the following...?

(A) Increase CO2 in blood
(B) Increase O2 in blood

(C) Decrease CO2 in blood
(D) Decrease O2 in blood

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Which of the following is not the organic bases of DNA...?

(A) Adenine
(B) Cytosine

(C) Thymine
(D) Uracil

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The deficiency of vitamin K causes ________ ...?

(A) Loss of appetite
(B) Scurvy

(C) Sterility
(D) Blood clotting disorder

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Archeology is the branch of:...?

(A) Anthropology
(B) Cultural Anthropology

(C) Biological Anthropology
(D) None of these

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Seedless vascular plants are...?

(A) Bryophytes
(B) Gymnosperms

(C) Pteridophytes
(D) None of these

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Plants make their own food using...?

(A) CO2 & water
(B) Sunlight

(C) Chlorophyll
(D) Photosynthesis

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Tuberculosis is a _________ infection...?

(A) Viral
(B) Bacterial

(C) Fungal
(D) Parasitic

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The frequency of ultrasound wave is typically...?

(A) Above 20 kHz
(B) Above 20,000 kHz

(C) Below 20 kHz
(D) Below 02 kHz

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A glass chimney stops an oil lamp from smoking because:...?

(A) It increases the supply of oxygen to the flame by convection
(B) The heat produced ensures complete

(C) Both to these
(D) Neither of these

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Light Emitting Diode (LED) is a ___ semiconductor device ....?

(A) 3 lead
(B) 4 lead

(C) 7 lead
(D) 2 lead

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