List of top Biology Questions

A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is

Tritegmic ovules occur in

Vegetative fertilization is characterised by

Outer multicellular solid and inner liquid endosperm occurs in

Scotopic vision is due to

Modified sebaceous glands that open over free margins of eye lids are

Suspensory ligaments of eye connect lens with

Rods and cones are partially embedded in

Aurbach's plexus controls

Conditioned reflex develops due to

Taste hair of gustatory receptor cells are

Mucus is secreted over the olfactory epithelium by

Filum terminale is part of

An inverted pyramid of biomass can be found in which ecosystem

Which of the following is not a producer ?

Among the following biogeochemical cycles which one does not have losses due to respiration

Pioneers in the secondary succession of previously burnt forest are

Photosynthetic efficiency is

Pyramid of biomass involving phytoplankton is

Key industry animals are

Muscles with characteristic striations and involuntary nature are

The first stage or pioneer colonisers of bare rock are

Pectoral gridle consists of

Pubic symphysis is

Ribs are attached to