Why don't viruses have a separate kingdom?

Correct! Wrong!

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Since viruses are not living organisms, they can’t be placed under a separate kingdom.

The importance of a nucleoid in bacteria as it contains the ____.

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Nucleoid is an undefined nuclear region in bacterial cell, that contains only nucleic acids.

Darwin’s book on evolution is known as ____.

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Darwin's book on evolution is known as "Origin of species". Concept of evolution is described in this book.

The fungus helps the lichens by ____.

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The fungus absorbs water and mineral matter and supplies it to the algae, which in turn prepares food and supplies it to the fungus.

Which of the following is a region of mega diversity?

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The warm and humid tropical regions of the Earth, between tropic of cancer and tropic of capricorn, are rich in diversity of plant and animal life. Hence it is called the region of mega diversity.

How do modern biologists prefer to distinguish the phylogenetic tree of organisms?

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Modern biologists prefer to distinguish the phylogenetic tree of organisms as multibranched.

Which of the following group of chemicals is commonly used to inhibit or kill bacteria?

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Antibiotic is a chemical made by one organism that can inhibit or kill another organism. It is commonly used to treat bacterial infections.

Flowering plants belong to ____ division.

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The flowering plants produce seeds enclosed within the fruit. They belong to angiospermae.

Plants and animals are classified separately based on ____.

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Plants are autotrophic and capable of preparing their own food. Animals are heterotrophic and obtain their nutrition from outside. Being able to produce one’s own food versus having to get food from outside, would make very different body designs necessary. Hence, the mode of nutrition is an important determining factor in classification of plants and animals.

Which among the following is the correct hierarchy for the classification of groups?

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Class, order and family is the correct hierarchy in the given classification of groups. Class represents organisms of related orders and order is an assemblage of related families.

Flowering plants are ____.

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Since angiosperms and gymnosperms produce flowers, they are called flowering plants.

In which of the following taxa do lion and tiger differ?

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The species of lion and tiger is different, i.e,. leo and tigris. They belong to same genus Panthera.

Which of the following emphasized the need for domain classification?

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Differences between archaebacteria and eubacteria emphasized need for domain classification.

Which of the following phylum includes pseudocoelomate animals?

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The pseudocoelomate animals are included in phylum Nematoda, an example of which is Ascaris. They have false coelom.

Which of the following kingdoms was not proposed by Whittaker in "The Five kingdom classification"?

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Viruses are on the brink of living and non-living. They need living organisms to perpetuate themselves. So they are not placed in any kingdom.

Which of the following groups of Archaebacteria are commonly found in swamps and marshes?

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Methanogens die in the presence of oxygen and hence they can survive well in swamps and marshes, where all the oxygen has been consumed by other organisms that live in these environments.

Which among the following protozoans has chloroplast in its body?

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Chloroplasts are present in Euglena, due to which it can carry out photosynthesis.

____ is an example of monocot plant.

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Banana plant shows all the features of a monocot.

Plant body in thallophytes is ____.

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The plant body that cannot be differentiated into root, stem and leaf is termed as thallophytes.

Organisms with appendages are commonly found in the kingdom ____.

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Appendages like cilia and flagella are seen in Protista.

A horse and a donkey are very similar to each other in appearance and they can inter-breed. But they are not included in the same species, because their ____.

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Organisms belonging to the same species can breed with each other and produce fertile offspring. But a donkey and a horse cannot produce fertile offspring. Their offspring is the mule, that is sterile.

Characteristics that came into existence earlier are likely to be more basic than characteristics that have come into existence later.

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This is because once a certain body design comes into existence, it will shape the effects of all other subsequent design changes.

Which of the following is the composition of chitin?

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Chitin is a tough complex carbohydrate, present in the cell walls of fungi.

Which among the following is a unicellular organism?

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Spirogyra, Nostoc and Volvox are multicellular.

Body cavity of hydra is called ____.

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Body cavity of hydra is called coelenteron or gastrovascular cavity

The genus name of leopard is Panthera. Which of the following does not belong to this genus?

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Rat belongs to a different genus 'Rattus'.

Which one of the following is the basis of classification of phylum protozoa into its classes?

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Presence or absence of different types of locomotory organs like cilia, flagella, and pseudopodia are forms the basis of classification of phylum protozoa into its different classes.

A feature common to certain bacteria and plant cells is the presence of ____.

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Some bacteria show the presence of cell wall, that is also present in plants.

Planaria is ____.

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Planaria is free living organism. It is found in fresh waters crawling on stones and lives at the bottom of ponds and lakes.

Which of the following is correct about the sponges?

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Single exit and innumerable mouths.

ICSE Class 9th Biology - Five Kingdom Classification MCQs
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