What is the name of the pigment which helps animal to see in dim light ?
Rhodopsin
What is the term used when animals remain dormant during summer ?
Aestivation
Which mineral is essential to synthesise a respiratory pigment haemoglobin ?
Iron
What is the expansion of ATP ?
Adenosine tri-phosphate
Which group of blood is called universal donor ?
'O' group
What are the various enzymes secreted in the stomach ?
Pepsin and Renin
Which food is the richest in calcium ?
Milk
What is the total number of bones in the human body ?
206
What lubricates the "white of the eye" ?
Lachrymal gland
What is the name of the artery in the wrist, in which doctors feel the pulse usually ?
Radial artery
Why there is a sudden flexion of the leg when blotting paper soaked in a weak acid is placed on the leg of a pitched and suspended frog ?
Due to Flexion reflex