List of top Biology Questions

During photosynthesis, oxygen in glucose comes from
Which of the following shows heterotrichous habit?
Yellow bone marrow is found especially in the medullary cavity of
Wharton?? duct is the duct of
The simple mechanical tissue of living cells is:
The camel?? hump is composed of a tissue, which provides water when oxidised, is called
Plants which can withstand wide range of temperature tolerance are called
Photoperiodism is associated with the formation of:
Pellagra disease is caused by the deficiency of
Mycorrhiza is correctly described as
In mammals, the digestion of starch starts from
How many teeth grow only once in the life of a man?
Which of the following sets represents all endodermal structures?
Conjoint, collateral, endarch and open vascular bundles are found in:
Azolla pinnata is used as a biofertilizer in rice cultivation. Azolla performs nitrogen fixation with the help of symbiotic bacterium Bacillus sp.
Alpine forests consist of dwarf shrubs mainly of junipers, silver firs and rhododendrons. Alpine forests occur in the Himalayas above the altitude of 3500 metres.
Acetylcholine participates in the nerve impulse transmission across a synapse. Acetylcholine is secreted by adrenergic fibres.
Animals belonging to order rodentia have
Wharton?? duct is the duct of
Where the conversion of harmful prussic acid into potassium sulphocyanide takes place ?
Sweat glands, in human skin, are located in the
An ecological pyramid of biomass is the representation of the ecosystem??
Chordae tendinae are found in
Which of the following gland controls egg production and moulting in insects ?
Which of the following is not true about 'sclereids'?