Select on of these which is not a eukarote: Eugelna, Spirogyra, Nostoc, Amoeba.

The shells of crabs found around a particular coastal location in Japan seem mostly to resemble theÿ legendary face of a Samurai. Given below are two explanations of this observed fact. Which of these strike you a scientific explanation (a) A tragic sea accident several centuries ago drowned a young Samura As a tribute to his bravery, nature through.its inscrutable ways immortalized his face by imprinting it on the crab shells in that area. (b) After the sea tragedy,,fisherman in that area, in a gesture of honour of their dead hero, let free crab shell caught by them which accidentally hadj a shape resembling the face of a Samurai. Consequently, the particular! shape of the crab shell survived longer and therefore in course of time the shape was genetically propagated. This is an example of evolution by artificial! selections.

Select the correct answer : The metal which becomes black in the presence of H_2S gas is iron/silver.

To destroy or inhibit the pathogenic action of microbes which type of drugs should be selected. Give one example of such drug.

Indian cricket team consists of 6 bowlers and 8 batsmen from which playing eleven is to be selected including atleast 4 bowlers. In how many ways can this be done?

Which stage of cell division will you select t study the morphology of chromosomes and Why?

Which shape selective catalyst is used in getting petrol from alcohol?>