List of top Biology Questions

Spongiform encephalopathy is caused by

Match the following and choose the correct combination

Column IColumn II
(a)Zeatin1.Flowering Hormone
(b)Florigen2.Synthetic Auxin
(c)IBA3.Cytokinin
(d)NAA4.Natural Auxin
Palisade parenchyma is absent in leaves of
Tapetum is found in
Which one of the following classes is included under gymnosperms ?
Laminaria and Fucus belong to
Fern spores are usually
In Funaria capsule dispersal of spores takes place through
Female cone of Pinus is a
Prothallus of the fern produces
A fern differs from a moss in having
Calyptra develops from
Which of the following plant kingdom is called 'amphibians'?
Young leaves of Cycas show
Both chlorophyll a and b are present in
Which of the following statements about Spirogyra is correct?
Which of the following classification is based on some morphological characters?
External fertilization occurs in majority of
Phylogenetic system of classification is based on
Natural system of classification was given by
Sphagnum is commonly used as packing material for transshipment of living material due to its
Vascular plants which produce seeds but not fruits belong to the group
Valve present over left auriculo- ventricular opening is
QRS of ECG depicts
Choose the animals which are not ureotelic ?