A gymnast is able to balance his body upside down ever in the total darkness because of
cochlea
vestibular apparatus
tectorial membrane
tectorial membrane
B.
vestibular apparatus
Vestibular apparatus of membranous labyrinth is an intricate series of inter-connected and fluid-filled canals which regulates balance and spatial orientation in the absence of vision, the movement of body will be regulated only by vestibular apparatus.
The otolith organs (utricle and saccule) regulates linear acceleration and semicircular canals sense rotational acceleration in various directions.
The cochlea, tectorial membrane and organ of Corti are responsible for transduction of sound waves.
Glenoid cavity articulates
clavicle with acromotion
scapula with acromion
clavicle with scapula
clavicle with scapula
Which of the following regions of the brain is incorrectly paired with its function?
Medulla oblongata – homeostatic control
Cerebellum – language comprehension
Corpus callosum – communication between the left and right cerebral cortices
Corpus callosum – communication between the left and right cerebral cortices
A chemical signal that has both endocrine and neural roles is?
melatonin
calcitionin
epinephrine
epinephrine
Which of the following does not favour the formation of large quantities of dilute urine?
Alcohol
Caffeine
Renin
Renin
A man with blood group 'A' marries a woman with blood group 'B'. What are all the possible blood groups of their offsprings?
A, B and AB only
A, B, AB and O
O only
O only
Read the following five statements (I to V) and select the option with all correct statements.
I Mosses and lichens are the first organisms to colonise a bare rock.
II .Selaginella is a homosporous pteridophyte.
III. Coralloid roots in Cycas have VAM.
IV. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
V. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.
I, III and IV
II, III and IV
I, IV and V
I, IV and V
Which one of the following statements is not true?
Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups
Pollen grains of some plants cause severe allergies and bronchial afflictions in some people
The flowers pollinated by flies and bats secrete foul odour to attract them (c) Honey is made by bees by digesting
The flowers pollinated by flies and bats secrete foul odour to attract them (c) Honey is made by bees by digesting
Which of the following are the important floral rewards to the animal pollinators?
Colour and large size flower
Nectar and pollen grains
Floral fragrance and calcium crystals
Floral fragrance and calcium crystals
