Everyday Science MCQs

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Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

A. 80.50%
B. 90.50%
C. 95.50%
D. 99.50%

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Which of the following openings have cilia?

A. Nephrostome
B. Nephridiopore
C. Both of these
D. None of these

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Malphighian tubules absorb waste materials and salts from__________?

A. Blood
B. Lymph
C. Gut
D. Hemolymph

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Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?

A. Glomerular filtrate
B. Filtrate passing through ascending limb
C. Filtrate passing through distal conveluted tubule
D. Filtrate passing through collecting tubules

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A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?

A. Kidney surgery
B. Burring a hole and removing the stone manually (nephrolithotomy)
C. Extracorporeal shock wave lithotripsy
D. None of these

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Bats & humming birds belong to___________?

A. Endotherms
B. Ectotherms
C. Heterotherms
D. Homeotherms

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Thick, waxy & leathery cuticle around leaves is present in___________?

A. Hydrophytes
B. Mesophytes
C. Xerophytes
D. Halophytes

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Which of the following animal excrete nitrogenous waste mainly as uric acid?

A. Hydra
B. Planaria.
C. Humans
D. Birds.

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In osmosis water molecules move from area of _____________ through semipermeable memberane?

A. Higher solute concentration to lower solute concentration
B. Lower solute concentration to higher solute concentration
C. Lower solvent concentration to higher solvent concentration
D. All of these

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Which of the following is most toxic?

A. Ammonia
B. Urea
C. Uric acid
D. Trimethylamine oxide

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