The crystal of lead zirconate is a key component of

• sonography

• electrocardiography

• electroencephalography

• magnetoencephalography

'Climacteric' is

• a phenomenon related to fruit ripening

• the condition of a plant when all its fruits are almost ripe

• the condition of a plant when most of its leaves have turned yellow

• none of the above

Cochlea of mammalian internal ear is concerned with

• hearing

• balance of body posture

• both (a) and (b)

• perception changes of atmospheric pressure

Which is not a gonadal hormone

• Progesterone

• Testosterone

• Adrenalin

• Estrogen

The dendrite carries impulses

• towards the cyton

• away from cyton

• across the body

• from one neuron to another

Ethylene is a

• gaseous hormone

• gaseous enzyme

• liquid-gas mixture

• solid hormone

Antibiotic flavicin is obtained from

• Aspergillus flavus 

• Aspergillus clavatum

• Streptomyces grieseus

• Streptomyces fradiae

Cerebrospinal fluid is present

• beneath the pia mater

• between piamater and arachnoid

• between arachnoid and duramater

• between duramater and cranium

The part of an eye which acts like a diaphragm of a photographic camera is

• pupil

• iris

• lens

• cornea

Antifeedant property occurs in

• nicotine

• azadiractin

• rotenone

• cinerin