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Recent questions tagged cbsc

Accumulation of non biodegradable pesticides in the food chain in increasing amount at each trophic level is known as

asked Aug 1, 2017 by priyanka.c

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Vestigial organs are

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A basket of vegetable contains carrot, potato, radish and tomato. Which one of the following represents correct homologus structures?

asked Aug 1, 2017 by priyanka.c

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Which among the following is not the function/s of the testes at puberty? <br>i. Formation of germ cells <br>ii. Secretion of testosterone <br>iii. Development of placenta <br>iv. Secretion of estrogen

asked Aug 1, 2017 by priyanka.c

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Identify the correct sequence of events of asexual reproduction in a flower

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Binary fission is seen in

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In a synapse, chemical signal is transmitted from

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Fruits are artificially ripened by using

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Sympathetic nervous system is a component of

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The event that does not occur in photosynthesis is

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Valve present between left atrium and left ventricle is

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Kulhs are irrigation canals of

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Bacteria found in the river Ganges when highly polluted is

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An effect of deforestation is

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The percentage of solar radiation absorbs by all green plants for photosynthesis

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Which of the following limits the number of trophic levels in a food chain?

asked Aug 1, 2017 by priyanka.c

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A gamete contains

asked Jul 31, 2017 by priyanka.c

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In pea plants, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plant to short plants in F2 is

asked Jul 31, 2017 by priyanka.c

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The book "Origin of Species" was written by

asked Jul 31, 2017 by priyanka.c

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Characters transmitted from parents to offspring are present in

asked Jul 31, 2017 by priyanka.c

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The correct sequences of reproductive stage seen in flowering plants are

asked Jul 31, 2017 by priyanka.c

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Which one is not a reflex action?

asked Jul 31, 2017 by priyanka.c

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Centre for locating body temperature is

asked Jul 31, 2017 by priyanka.c

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Nastic movements are

asked Jul 31, 2017 by priyanka.c

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Which is he correct sequence of air passage during inhalation?

asked Jul 31, 2017 by priyanka.c

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If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

asked Jul 31, 2017 by priyanka.c

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Life span of RBC is

asked Jul 31, 2017 by priyanka.c

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Gaseous exchange in plants occur through

asked Jul 31, 2017 by priyanka.c

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Resins and gums are normally deposited in plants

asked Jul 31, 2017 by priyanka.c

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Which of the following is an unpaired endocrine gland

asked Jul 31, 2017 by priyanka.c

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A patient was asked t take insulin shots by the doctor because

asked Jul 31, 2017 by priyanka.c

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Vegetative propagation refers to the formation of new plants from

asked Jul 31, 2017 by priyanka.c

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In Rhizopus, tubular thread like structure bearing sporangia at their tips

asked Jul 31, 2017 by priyanka.c

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An IUCD dervice is

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The femaleness of a child is determined by

asked Jul 31, 2017 by priyanka.c

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The two variations of a trait that are brought by male and female gametes are suitable on

asked Jul 31, 2017 by priyanka.c

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Excessive exposure to UV rays results in <br>i. Damage to immune system <br>ii. Damage to lungs<br>iii. Skin cancer<br>iv. Peptic ulcers

asked Jul 31, 2017 by priyanka.c

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Identify the artificial ecosystem.

asked Jul 31, 2017 by priyanka.c

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Which chemical has been replaced recently?

asked Jul 31, 2017 by priyanka.c

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Waste produced during extraction of metal is called

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Khadins, Bundhis, Ahars and Kattas are ancient structure for

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A successful forest conservation strategy should encompass

asked Jul 31, 2017 by priyanka.c

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Water is

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Measurement of water pollution is made by

asked Jul 31, 2017 by priyanka.c

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Identify the abiotic component in these.

asked Jul 31, 2017 by priyanka.c

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A biodegradable waste is

asked Jul 31, 2017 by priyanka.c

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Ozone shield acts a protective barrier against

asked Jul 31, 2017 by priyanka.c

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If a homozygous round and green seeded plant is crossed with wrinkled and green seeded plant, the $F1$ generation will have

asked Jul 31, 2017 by priyanka.c

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The scientific name of the plant, Mendel worked was

asked Jul 30, 2017 by priyanka.c

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The wings of the bat, locust and pigeon are

asked Jul 30, 2017 by priyanka.c

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