51.

The number of RBCs in man increases if he lives at a higher altitude, this is because

• there is more oxygen at the mountains

• there is less oxygen at mountains

• more heat is required to be produced in the body for keeping warm

• there are no germs in the air in mountain

Foramen magnum is situated in

• buccal cavity 

• base of skull

• left auricle 

• vertebrae

The genes and splenium in brain are associated with

• cerebellum

• crebrum

• medulla oblongata

• vermis

Scala vestibuli is connected with

• fenestra rotundus

• fenestra ovalis

• scala tympani

• scala media

The friction between the eyelids and the cornea is avoided by the secretion of

• lachrymal glands

• conjunctiva and eyelids

• hardarian glands

• Meibomian glands

Tendrils exhibit/twining of tendrils is due to

• thigmotropism

• seismonasty

• heliotropism

• diageotropism

Flowering dependent on cold treatment is

• cryotherapy

• cryogenics

• cryoscopy

• vernalisation

Sunken stomata occur in

• xerophytes

• hydrophytes

• mesophytes

• opsanophytes

Metha Jahar which is useful in rheumatism is obtained from

• Aconitum napellus

• Colchicum

• Exogonium

• Licorice

Ball and socket joints can be seen in

• wrist 

• fingers

• neck

• shoulders