The total capacity of lungs is about:
- 2 litters
- 4 litters
- 6 litters
- 8 litters
At room temperature, most metals are:
- Solid
- Gas
- Liquid
- None of these
One cell thick vessels are called:
- Veins
- Pulmonary artery
- Capillaries
- Arteries
Bacteria is
- Multi cellular organism
- Virus
- Fungi
- None of these (one cell)
The water potential of pure water is:
- Zero
- One
- Less than zero
- More than one
What is the scientific name of frog?
- Allium Cepa
- Brassica Campestris
- Rana Tigrina
- Homo Sapiens
Which part of the plant produces pollen?
- Anther
- Ovules
- Filament
- Both B & C
Which of the following is the largest ecosystem in the world?
- Desert
- Forest
- Grassland
- Ocean
