How many salivary glands are present in man?

How many salivary glands are located in man?

How many sigma and pi bonds are present in naphthalene?

How many botanical gardens are present in world?

What are spinal nerves? How many spinal nerves are present in case of man? Give the origin of spinal nerve.

Brunner's glands are present in :

How many valence electrons are present in halogen elements?

How many Golgi bodies are present in the animal cells?

How many valence electrons are present in aluminium?