NTSE Part II Class 8 Biology Chapter 1 to 5
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NTSE Part II Class 8 Biology Chapter 1 to 5

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The top soil is darker and_______________

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Organic matter decayed to a relatively stable, amorphous state; formed when soil microorganisms decompose animal and plant material into elements usable by plants.

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Insectivorous plant grows only in soil deficient in

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Soil erosion is due to

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Which of the following is a renewable resource?

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Main renewable source of energy is

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Minerals and metals are

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Soil fertility is reduced by

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Water is a resource

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Main cause of soil erosion

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The bulk fixation of carbon through photosynthesis takes place in the

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Inexhaustible and non-conventional source of energy is

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Soil is composed of

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Best source of renewable energy is

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Soil erosion can be prevented by

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Which pH range is most conducive for fresh water plants and animals?

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Ground water will not be depleted due to

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The Ranthambore National Park is located in

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Most probable cause of depleting tiger population in Sariska is

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Similipal is a

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The headquarters of IUCN are at

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Endangered plant species are conserved by

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The Gir forest in Gujarat is famous for

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Which one of the following pairs is correctly matched?

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Ecosystem has two components

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Abiotic component in an ecosystem is

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The niche of a species is meant for

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Adaptation to low temperature and freezing in animals occurs due to the production of

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Plants occurring on soils rich in salts are known as

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Plants growing in extremely cold soils are

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Biologists observe 5th June as

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Among the following, which plant is completely devoid of roots?

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In submerged hydrophytes, the functional stomata are found

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What is the name given for an association of two species where one is benefited and other remains unaffected or unharmed?

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What is the relationship between water fern (Azolla) and nitrogen-fixing cyanobacteria (Anabaena) called?

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Occurrence of Zoochlorellae in the body wall of Hydra is an example of

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What is the sequence of species through which the organic molecules in a community pass called?

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Trophic levels are formed by

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The following groups of organisms represent different trophic levels. Which out of these four has the greatest biomass?

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The pyramid that cannot be inverted in a stable ecosystem is pyramid of

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In an aqueous environment microscopic animals and plants are collectively known as

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The leguminous plants are important in agriculture because

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The process of denitrification means the

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World climate is threatened by increase in the concentration of

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Which of the following contribute to the carbon cycle?

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Ten percent of energy gets transferred in food chain, this is enuciated by

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To prevent soil erosion, farmer plants a hedge across a field. This method works because

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From the following, which is the best source of renewable energy?

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The presence of ozone in the atmosphere of earth

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The species, which are in danger of extinction, are referred to as

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When plant diversity is maintained in natural habitat the conservation is called

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The Siberian crane from Russia is a regular visitor to the bird sanctuary in which place in India?

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An American plant that had become a troublesome waterweed in India is

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Deforestation has an alarming effect on

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Terracing is an effective method of soil conservation in

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Minamata disease is a pollution-related disease, which results from

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In a highly industrialised area, which of the following will be virtually absent?

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Mulching is a process that helps in

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How many species are believed to exist on Earth at present time?

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Who is known as the Father of Biology?

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Which of the following is called the "Father of Taxonomy"?

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Binomial system of nomenclature means that every organism has___________

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The correct sequence of taxonomic categories is

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A group of interbreeding organisms is referred to be belonging to the same

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The largest herbarium in the world is located at

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The classification of algae is based on

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Which group of plants among the following produce seeds?

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Choose an animal which possesses an open circulatory system.

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Which one among the following is the most common character of vertebrates?

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In which group of animals, body cavity is filled with blood?

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Animals showing highly repetitive segmented body-plan belong to

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Parasitic Planaria is a________________

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Which one of the following is not true for protochordates?

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Which among the following does not have placoid scales?

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The evolutionary history of a group of organism is termed as

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Hierarchical level below the category of family is

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Opium is an extract of the plant

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An animal which has notochord throughout its life is

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Animals with a tube feet, water vascular system and ossicles belong to___________

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Which of the following groups includes amphibians of plant kingdom?

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Bryophytes are dependent on water because

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Bryophyta acts as connecting link between

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"Botanical snakes" are

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Coralloid roots help the plant in

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Xylem in gymnosperm lacks_____________

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Phloem of gymnosperms is devoid of________________

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Fruits are not formed in gymnospermous plants because

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Which one of these does not require external water for fertilisation?

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Where is "Sago" found?

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Sago-grains are chiefly obtained from

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While on a journey up in the hills you may come across a thick forest of Pinus geradiana. What do you think is the altitude of that region from sea level?

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Winged pollen grains are found in

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Floral features are chiefly used in angiosperms identification because

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Sponges are

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Which of the following animals has a nervous system but no brain?

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Regeneration capability of Hydra is

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What is common amongst tapeworm, liver fluke and planarian?

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What is measly pork?

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Elephantiasis is transmitted by

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Earthworms are called 'friends of farmers' because they

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Which of the following possesses an ink gland that, when disturbed produces a jet of black ink, which acts as a 'smoke screen' to dodge the attacking enemy?

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Glow worm is

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The scientist, who decoded 'the language' of bees, explained their "dances" for communication and was awarded the Noble Prize for it was

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Peripatus is a connecting link between Annelida and Arthropoda. In addition the other character of zoological importance in this animal is

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The most highly advanced character in crocodiles among Reptilia is the

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The flight muscles of birds are attached to

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Which of the following animal has become recently extinct?

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Which of the following mammalian character has no exception?

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Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?

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Ivory is obtained from

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Bats have special sensory system called

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About 70% of our energy requirements should be met by

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The energy produced by 1g of carbohydrate is

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The part of food that is not digested in the body is

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For immediate energy production in cells one should take

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The term 'nonessential amino acids' is applied to amino acids that are

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We usually get all the minerals we need from

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A gram of butter provides more energy that a gram of sugar because

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The major requirement of protein in the body is for

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How many of the 20 amino acids are essential amino acids for an adult human?

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Which of the following substance can be assimilated unchanged?

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Which of the following nutrients do not provide energy for animals?

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Vitamins with some enzymes act as

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The name vitamin was used for the first time by

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Vitamin A is needed for the synthesis of

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Vitamin A is produced from carotene in

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Deficiency of vitamin , leads to

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Pernicious anaemia failure of erythrocytes to mature is mainly due to lack of

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Rajesh eats neither meat nor animal products such as cheese, milk or egg. Which vitamin is most likely to be deficient in the diet of Rajesh?

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A person suffering from bleeding gum need in his food

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Ascorbic acid is a

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The vitamin, which is generally may be excreted in urine by humans, is

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Vitamin that is destroyed on heating

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If there were no ultraviolet rays reaching the earth, human should suffer from deficiency of

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Calcium deficiency occurs in the absence of vitamin

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Vitamin K is used for

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Vitamin needed for blood coagulation is

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A person will suffer from beriberi, rickets and scurvy if, he is not consuming adequate amounts of

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A mineral is a substance that can be used by an animal in a form that is

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Your friend tells you that, since he has no time to eat properly, he is taking megadoses of vitamins. You warn him that, this may be dangerous. Which vitamin would be most dangerous to him?

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A dental disease characterised by mottling of teeth is due to presence of a certain chemical element in drinking water. Which is that element?

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What fraction of your body is water?

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Which disease among the following spread if excreta from someone suffering from this disease gets mixed with drinking water used by people living nearby?

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Viruses that cause jaundice survive in

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Vaccine is not available for

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Pick out the disease which spreads through cuts and wounds.

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Which of the following diseases is caused by a virus? 

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DTP vaccine is given to infants to immunise them against

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Lockjaw is an acute symptom in which the patient cannot open his jaw due to extreme stiffness of the neck muscles. The disease is caused by

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Algae lacks any type of mechanical tissues, because

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Algae can be described as

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Which algae are considered as ancestors of land plants?

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The extra nuclear DNA in a bacterial cell contains genes for

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Which one of the following is not used in bacterial photosynthesis?

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The bacterial ribosomes are found

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Which of the following organism is a gram-positive bacteria?

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Poisonous substance released on rupturing of schizont of RBC in a patient of malaria is

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A yeast cell differs from a bacterial cell as it is

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Which of the following are true for a fungus?

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Which one of the following is not true for lichens?

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The fungus having high protein content is

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In fungi, the food material is stored in the form of

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Which among the following is a good source of a natural dye of litmus? 

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A phylum common to unicellular plants and animals is

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Which structure among the following is used by a parasite to draw food from their hosts?

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Mycorrhizae specialized for absorption of nutrients from the soil are

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The main function of contractile vacuole in Amoeba is

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The primary host of malaria parasite is

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In which organ of man is Entamoeba histolytica found?

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Which among the following is not a locomotory organ in protozoa?

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Male mosquito does not carry malarial parasite, because

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Which protozoa is responsible for causing the disease leucorrhoea?

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The study of the diseases of the circulatory system and of the lymphatic system is called as

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Which of the following sets includes the bacterial disease?

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Which algae is commonly called as pond silk or pond scum?

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An algae which lives as parasite on plants is

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In Spirogyra, special structures called as pyrenoids store

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Which one of the following is a unicellular algae?

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A thalloid red algae used for commercial production of agar-agar is

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Which of the following algae have a cup shaped chloroplast?

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Study of Algae is known as

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Water bloom is caused by

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Brown algae commonly known as 'Kelp', used for extraction of iodine is

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What would happen if a green algae is placed in salt-water?

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Comma shaped bacteria belong to the category of

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Escherichia coli in human intestine help to synthesize

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Continuous fever, headache, slow pulse, pain in the stomach, rose coloured rashes are the major symptoms of

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Who discovered the smallpox vaccine?

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Vaccine which provides immunization against polio was developed by

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'Salk' vaccine is used for vaccination against

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Entamoeba gingivalis lives in the

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The disease filariasis is caused by the worm

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AIDS disease was reported for the first time in

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AIDS virus has

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Who established that anthrax-disease of sheep is caused by Bacillus anthracis?

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Region of human body where poliomyelitis virus multiplies

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