List of top Biology Questions

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'?
Identify the one, which causes mutation
Which of the following is flightless bird ?
Which of the following is not applicable to coelenterates ?
Which is a true fish?
In a plant cell, starch is stored by:
Gigantism and acromegaly are due to improper functioning of:
Fishes, amphibians and reptiles have in common:
Ureotelic animals excrete out:
Which of the following stages is the longest in animals?
Which of the following pairs of specific names belongs to same common genus?
Which one of the following organs are homologous?
An experiment to prove that organic compounds were the basis of life was performed by:
What causes the liquid part of blood filter out form glomerulus into the renal tubule?