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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

3801.

Question : Define parturition.

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Solution :The birth of the fully developed foetus (CHILDBIRTH) is CALLED PARTURITION.
3802.

Question : Define: OR Explain the terms Water harvesting

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Solution :A METHOD of holding rainwater on the SURFACE, to make it percolate under the ground to RECHARGE ground water is called water HARVESTING.
3803.

Question : Define: OR Explain the terms: Vegetative propagation

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Solution :In CERTAIN plants, root, stem and leaves DEVELOP into new plants under favourable conditions. This property is CALLED as vegetative PROPAGATION.
3804.

Question : Define: OR Explain the terms Sustainable management

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Solution :The CONTROLLED use of a resource in such a WAY that its present availability and continuous flow to the future generation is ensured without any disturbance to the environment is CALLED SUSTAINABLE MANAGEMENT
3805.

Question : Define: OR Explain the terms: Variation

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Solution :The difference in the characters of individuals of a same species or its POPULATION is KNOWN as VARIATION.
3806.

Question : Define: OR Explain the terms: Spore

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Solution :A MICROSCOPIC reproductive UNIT PRODUCED in sporangia and covered by thick PROTECTIVE wall is CALLED spore.
3807.

Question : Define: OR Explain the terms: Sporangia

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Solution :In fungus e.g., Rhizopus, tiny blob-like structure PRODUCING SPORES for reproduction is CALLED SPORANGIA.
3808.

Question : Define: OR Explain the terms: Sexual reproduction

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SOLUTION :A MODE of reproduction that depend a on the involvement of TWO individuals (male and FEMALE) to create new generation is known as SEXUAL reproduction.
3809.

Question : Define: OR Explain the terms: Seed germination

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Solution :The development of new plant from the seed UPON GETTING favourable conditions, is KNOWN as seed germination.
3810.

Question : Define: OR Explain the terms: Reproduction

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SOLUTION :The process PRODUCING new organism of its own kind during their maturity STAGE is KNOWN as REPRODUCTION.
3811.

Question : Define: OR Explain the terms: Puberty

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Solution :The age at which reproductive organs BECOME functional and ATTAINING the sexual maturity is KNOWN as .PUBERTY..
3812.

Question : Define: OR Explain the terms: Pollination

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Solution :A PROCESS of transfer of pollen from ANTHER of a stamen to the STIGMA of a pistil in the same or in different FLOWER is CALLED pollination.
3813.

Question : Define: OR Explain the terms Natural resources

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Solution :Substances which are OBTAINED from nature and used by all LIVING FORMS to sustain their LIFE are called natural RESOURCES.
3814.

Question : Define: OR Explain the terms: Natural selection

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Solution :Environment selects the best VARIANT organisms with better adaptation. New species are evolved from such HIGHLY ADAPTED species after MANY generations is CALLED natural selection.
3815.

Question : Define: OR Explain the terms: Multiple fission

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SOLUTION :A mode of asexual reproduction in which the division of parent cell forms small, nearly EQUAL sized daughter offsprings is KNOWN as multiple is FISSION.
3816.

Question : Define: OR Explain the terms: Fragmentation

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Solution :The breaking up of the BODY of a multi- cellular organism into two or many pieces and on maturing, each piece grows to FORM a complete NEW organism is KNOWN as FRAGMENTATION.
3817.

Question : Define: OR Explain the terms: Meiosis

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Solution :A type of cell division in germ cells in which CHROMOSOME number is REDUCED to half is CALLED MEIOSIS.
3818.

Question : Define: OR Explain the terms Fossil fuels

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Solution :The remains of plants and animals which are burried under the earth some millions of year ago and changed into fuel DUE to TREMENDOUS heat and pressure are called fossil FUELS.
3819.

Question : Define: OR Explain the terms: Flower

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SOLUTION :A sexual REPRODUCTIVE STRUCTURE produced in flowering plants, ESPECIALLY in angiosperms is called FLOWER.
3820.

Question : Define: OR Explain the terms: Fertilisation fusion of male gamete

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SOLUTION :A PROCESS of and FEMALE GAMETE to form a zygote is called fertilisation.
3821.

Question : Define: OR Explain the terms: Evolution

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Solution :The GRADUAL process by which complex and DIVERSE LIFE forms are created from simple form of ORGANISMS by different evolutionary forces over a long time is called evolution.
3822.

Question : Define: OR Explain the terms: Female foeticide

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Solution :ILLEGAL sex-selective abortion of FEMALE foetuses or KILLING the female foetus is called female FOETICIDE.
3823.

Question : Define: OR Explain the terms: Bud

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Solution :A bulging structure that DEVELOPS as an outgrowth due to repeated cell division at one SPECIFIC site, which develops into tiny INDIVIDUAL is called a BUD.
3824.

Question : Define: OR Explain the terms Dams

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SOLUTION :The barriers CONSTRUCTED across rivers to HOLD the water for different USES is CALLED dams.
3825.

Question : Define: OR Explain the terms Biodiversity

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Solution :The NUMBER and RANGE of VARIETY of SPECIES of life forms in an AREA is called biodiversity.
3826.

Question : Define: OR Explain the terms: Asexual reproduction

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Solution :The MODE of REPRODUCTION allows new a generation to be created from a single individual WITHOUT the formation and fusion of gametes is known as asexual reproduction.
3827.

Question : Define nutrition.

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Solution :NUTRITION is a PROCESS of INTAKE as well as UTILISATION of NUTRIENTS by an organism.
3828.

Question : Define neuron. Name the parts of neuron where : Information is acquired.

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Solution :The units which makes up to NERVOUS system are celled neurons.
END of dendrite tip of nerve cell.
3829.

Question : Define neuron. Name the parts of neuron where : Impulse must be converted into chemical signal for onwasrd transmission.

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Solution :The UNITS which makes up to NERVOUS SYSTEM are celled neurons.
DENDRITE `to` cell BODY `to` axon to its ends.
3830.

Question : Define neuromuscular junction.

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Solution :Neuromuscular junction is a chemical synapse formed by the CONTACT between as motor NEURON and a MUSCLE fiber.
3831.

Question : Define mutation.

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SOLUTION :Sudden CHANGES in the genetic MAKE up of an organism, which are capable of expressing and are inheritable, are called MUTATION. These lead to VARIATIONS.
3832.

Question : Define macroevolution.

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SOLUTION :MACROEVOLUTION involves LARGE SCALE CHANGES among group of species.
3833.

Question : Define light reaction.

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SOLUTION :A chemical reaction, which TAKE PLACE only in the presence of LIGHT, is called light reaction or light dependent reaction. It TAKES place in grana of chloroplast.
3834.

Question : Define Life

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SOLUTION :LIFE is unique, COMPLETE functioning of metabolic ACTIVITIES
3835.

Question : Define joint diastole. What are constituents of the conducting system of human heart ?

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Solution :In a cardiac cycle when both ATRIA and ventricles are in a diastole and are RELAXED simultaneously is called a joint diastole. Conducting system CONSTITUTES : SA node → AV node → Bundle of His → PURKINJE fibres.
3836.

Question : Define hormone. Write any four characteristics of hormones in humans.

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Solution :Hormones are the chemical substances which co-ordinate and control the ACTIVITIES of living organisms and also their GROWTH.
CHARACTERISTICS of hormones are :
(i) They are chemical MESSENGERS
(ii) Regulate behaveour of target cells.
(iii) They STIMULATE the teragetorgans.
(iv) They are proteinaceous or non - proteinaceous in nature.
3837.

Question : Define homologous series of organic compounds. List its twocharacteristics. Write the name and formula of the first member of the series of alkenes.

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Solution :The series of organic compounds having same functional group and similar CHEMICAL properties is called homologous series.
Each MEMBER differs from successive memberby - `CH_(2) `- group. The DIFFERENCE in molecular weigth between two successive members is 14 u.
Characteristics. :
It has same GENERAL formula, from which all members can be derived.
(ii)They have similar chemical properties.
`C_(2)H_(4), CH_(2) = CH_(2)` , Ethene is first memberof alkene series.
3838.

Question : Define heterozygous.

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Solution :When the two chromosomes in the homologous pair are DIFFERENT i.e., one is DOMINANT and other recessive, such a pair is said to HETEROZYGOUS.
3839.

Question : Define heredity.

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SOLUTION :TRANSMISSION of traits from one GENERATION to NEXT through genes is termed as HEREDITY
3840.

Question : Define GFR (Glomerular Filtration Rate).

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SOLUTION :The AMOUNT of filtrate FORMED by the kidney per minute.
3841.

Question : Define genetics what is the contribution of Mendel in the field of genetics?

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Solution :The branch of biology that DEALS with the study of heredity and variation is called genetics Gregor JOHANN Mendel was the first person to carry out experiment regarding the heredity of certain characters trom one GENERATION to ANOTHER in a scientific manner. He worked mainly on the garden pea plant. His observations regarding the OCCURANCE of contrasting characters in various generations of garden pea led him to interpret that these are eontrolled by units which he called factors. These factors are today know as genes. He is also know as the father of genetics..
3842.

Question : Define Genetic engineering.

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SOLUTION :Genetic engineering is the manipulation and TRANSFER of genes from one ORGANISM to another organisms to create a NEW DNA called as recombinant DNA (DNA). The genetic engineering is ALSO called as recombinant DNA technology.
3843.

Question : Define gemma.

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SOLUTION :Gemma are GREEN, multicullular, asexual buds which DEVELOP in receptacles called as gemma CUPS.
3844.

Question : Define file.

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Solution :The output we get from any APPLICATION is commonly REFERRED as .file.. THEREFORE the application for the specific purposes DETERMINES the nature of the file.
3845.

Question : Define feedback mechanism of hormones.

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SOLUTION :The MECHANISM that controls the flow of hormones is called FEEDBACK mechanism of hormones.
3846.

Question : Define : Explain the terms : Wind energy farm

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Solution :A number of WINDMILLS erected over a large area for the COMMERCIAL use of wind energy is known as wind energy FARM.
3847.

Question : Define : Explain the terms : Solar constant

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Solution :The SOLAR energy reaching unit area on OUTER surface of the earth.s atmosphere which is exposed perpendicularly to the rays of sun at the average DISTANCE between the sun and earth is called solar CONSTANT.
3848.

Question : Define : Explain the terms : Nuclear fusion

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SOLUTION :The process of SPLITTING a HEAVY nucleus into smaller nuclei along with the release of large amount of ENERGY is called nuclear FISSION.
3849.

Question : Define : Explain the terms : Geothermal energy

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SOLUTION :The HEAT energy obtained in the form of STEAM from hot spots region is called GEOTHERMAL energy.
3850.

Question : Define : Explain the terms : Non-conventional sources at energy

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Solution :Those SOURCES of energy which meet only a limited energy REQUIREMENT are KNOWN as non-conventional sources of energy.