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NEET Biology Solved Question Paper 2007

Multiple Choice Questions

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

52.

Foramen magnum is situated in

buccal cavity
base of skull
left auricle
vertebrae

53.

The genes and splenium in brain are associated with

cerebellum
crebrum
medulla oblongata
vermis

54.

Scala vestibuli is connected with

fenestra rotundus
fenestra ovalis
scala tympani
scala media

55.

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

lachrymal glands
conjunctiva and eyelids
hardarian glands
Meibomian glands

56.

Tendrils exhibit/twining of tendrils is due to

thigmotropism
seismonasty
heliotropism
diageotropism

57.
Flowering dependent on cold treatment is

cryotherapy

cryogenics

cryoscopy

vernalisation

vernalisation

Many plants have a vernalization requirement, that is, they actively repress flowering until after a period of prolonged cold, in order to align seed production with the favourable environmental conditions of spring. Vernalization occurs during the cold, but flowering only occurs many weeks or even months later when other specific conditions, including the presence of certain photoperiods and ambient temperatures, are also met.