Haemoglobin of the human blood forms a stable complex compound with which of the following gas leading to death?

When a sea diver goes very deep he has to breathe on compressed air at high pressure. After somtime, he loses his strength to work and feel drowsy. This is because of

Which is called Hamburger shift?

Which of the following respiratory organs are present in spiders and scorpions?

Haemoglobin (Hb) is a

Which two of the following changes (I-Iv) usually tend to occur in the plain dwellers when they move to high altitudes (3,500m or more)?

I.Increase in red blood cell size.

II.Increase in red blood cell production.

III.Increased breathing rate.

IV.Increase in thrombocyte count.

Changes occurring are

During expiration,the diaphragm becomes

Which structure of the lungs is directly involved in O₂/CO₂ exchange between air and blood capillary?

Right lung of rabbit is divided into

During normal respiration without any effort the volume of air inspired or expired is called