MCQ
$..........$ is considered as the basic functional unit of the human kidney:
- AExon
- ✓Nephron
- CCilia
- DNeuron
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$(i)$ Arteries are thickwalled and have narrow lumen as compared to veins.
$(ii)$ Angina is acute chest pain when the blood circulation to the brain is reduced.
$(iii)$ Persons with blood group AB can donate blood to any person with any blood group under $ABO$ system.
$(iv)$ Calcium ions play a very important role in blood clotting.Which two of the above statements are correct?
$Statement-2$ : Penicillium is an unicellular fungus.
$Statement-3$ : Albugo is a parasitic fungus on mustard.