The most ancient bacteria are:-

The process in which reverse transcriptase convert single stranded viral RNA into double stranded viral DNA is called:-

Vitamins are essential raw material for the synthesis of:-

During respiration organism break down complex compound containing:-

A bacterium without any flagellum is called:-

Four polypeptide chains take part in the formation of:

 The number of chromosomes in the cells of the Sporophyte plant body of Ulva is:

Parasitic protozoans that form spores at some stages in their life belongs to which group:-

Nereis belongs to class:-

Unsaturated fatty acid contains ______ double bonds:-

Process in which all branches of stem grow in different planes is called:-

Which one is an example of nucleotide:-

Which does not belong to subclass eutheria:-

Cell theory was finally formulated b:-

One of the following has no upper incissors:-

A relationship between two or more organisms of different species in which all partners get benefit is:-

Blue colour respiratory pigment is present in:-

The amount of Na by weight in the human body is;-

Tubular excretory system of earthworm consist of:-

Group of the living organisms of the same species located in the same place at the same time is called:-

Organelles of symbiotic regions are:-

Which plants are said to be amphibians of plant world:-

How much air lungs can hold:-

Portuguese man of war is the name used for:-