Ozone hole' refers to:

The lentic ecosystem includes:

Halophytes are peculiar in having:

Halophytes groom on physiologically dry soil due to presence of:

Most common ovule having funiculus lying cloe to the micropyle is called:

A bisexual flower which always remains closed is called:

The occurrence of more than one type of leaves on the same plant is know as:

Without fertilization, the development of an embryo from an egg is called:

An example of pseudocarp is:

A fruit in which the part other than that of usual fruit is also edible is:

The plant that produces spores, has vascular tissues and bear seeds without fruits:

Lignin is the important constituent in the cell wall of:

Tyloses are seen in:

Secondary growth in thickness makes distinct annual rings in plants growing in:

Tunica-Corpus theory was proposed by:

Which of the followings can utilize molecular nitrogen (N₂) as nutrient for growth?

The cells of the bacterium Streptococcus remain arranged in the form of:

In bacterial cell, the respiratory enzymes are located in:

The useful activities of several bacteria are:

Bacterial transformation was discovered by:

The useful shape of growth curve is:

Leaf photosynthates are transported to roots through the cells of:

The wavelength of light most absorbed during photosynthesis is:

Oxidative phosphorylation occurs during photosynthesis is:

The chemical link between Glycolysis and krebs cycle is: