The cause of tooth decay.
Fungus
Virus
Bacteria
Germs
The gas received by the plants during photosynthesis.
Hydrogen
Oxygen
Carbon dioxide
Nitrogen
The function of Canines.
For tearing food
For cutting food
For chewing food
For grinding food
Urine contains --------------- of water.
94%
95%
96%
97%
The gas that is sent out during photosynthesis.
The undigested and unabsorbed portions of food are temporarily stored in the
anus
rectum
small intestine
large intestine
The hardest substance in the human body.
Back bone
Skull
Tooth enamel
Nail
