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Q&A Bank >> 19 January 2013



Q : how i make project report on quotapplication of orquoti
Q : if
Q : hi i3939ve been given this taskltbrgtltbrgtyou are required
Q : autogenic and allogenic succession in many cases the living
Q : secondary succession - community changesecondary succession
Q : primary succession - community changein primary succession
Q : succession - community changethe factors like fire floods
Q : community changeecosystems are dynamic entities in which a
Q : dominance - synthetic charactersit is a characteristic of
Q : physiognomy and pattern physiognomy is the general
Q : frequency - synthetic charactersthis term refers to the
Q : species diversity - synthetic charactersit is one of the
Q : fidelity - synthetic charactersfidelity refers to the
Q : presence and constancy - synthetic characterspresence and
Q : weight of plants - quantitative charactersweight is one of
Q : height of plants - quantitative charactersthe height of a
Q : herbage area or vegetation coverherbage area or vegetation
Q : quantitative characters - population densitydensity denotes
Q : sociability gregariousnesssociability refers to the nature
Q : therophytes - classes of life formthese are annual plants
Q : hemicryptophytes - classes of life formin this case the
Q : life forms - qualitative charactersthe form and structure
Q : vitality and vigour - qualitative charactersvitality is
Q : animals in the community - nature and structure of
Q : phenology of different speciesthe phenology of different
Q : periodicity phenology aspectionit refers to the study of
Q : terrestrial and aquatic ecosystemwhat is common between a
Q : stratification - aquatic ecosystemsaquatic ecosystems also
Q : vertical stratification - tropical rain forestin a tropical
Q : stratification of vegetation - qualitative
Q : floristic composition - qualitative characters one of the
Q : analytic characters - nature and structure of communityas
Q : ecotone - nature and structure of communitythe zone of
Q : community gradients and boundaries it is often difficult or
Q : nature and structure of communityevery place on earth
Q : animals of estuariesthe animals of estuaries and related
Q : plants of estuarythe plants of the estuary are of four
Q : biota of estuaries the estuarine community is a mixture of
Q : water of estuariesthe water of estuaries is turbid because
Q : currents in estuariescurrents in estuaries are caused
Q : temperature - estuaries another important variable is
Q : features of estuaries the physicochemical properties of the
Q : estuaries - aquatic ecosystemsall the rivers and lakes
Q : biota of pelagic zonepelagic region constitutes 90 per cent
Q : biota of the neritic oceanic zonethis zone constitutes 75
Q : biota of littoral zonethis zone is the shore region of the
Q : biota of oceans - ecosystemlife in the sea is not
Q : pelagic zone - organisation of the marine ecosystemthe
Q : benthic zone - organisation of the marine ecosystemthe
Q : circulation of nutrients in the coastal zonecirculation of
Q : depth and currentsdepththe sea is very deep varying in
Q : pressure and continuitypressurewater pressure increases
Q : dissolved gases and alkalinitydissolved gasesthe marine
Q : temperature and concentration of
Q : light - marine ecosystemslight is a limiting factor in the
Q : marine ecosystems marine ecosystems cover 70 per cent of
Q : plants - slow moving watersplant life is abundant in this
Q : animals - slow moving waterszooplankton are common here and
Q : a file of employee have 10000 blocks on a cylinder of a
Q : plants - rapidly flowing watersamong the plants only small
Q : animals - rapidly flowing watersin the exposed rock surface
Q : rapidly flowing waters - biota of rivers in the rapidly
Q : coarse fish reach or lowland course zonethis zone
Q : the mirrows reach or grayling zonethis zone has a less
Q : trout beck zone - lotic ecosystemthis is larger and more
Q : head stream of highland brook zonethis is formed by a
Q : the lower course - classification of the riverthe lower
Q : the middle course - classification of the riverthe middle
Q : the upper or mountain course - classification of the
Q : classification of the river zones the course of a river can
Q : characteristics of river systems the basic function of the
Q : lotic ecosystems rivers the lotic or flowing water habitats
Q : animals of the open water zone the limnetic region of this
Q : plants of the open water zonein this zone plants are
Q : animals of the littoral zone animals of this zone may be
Q : categories of benthic flowering plantszone of emergent
Q : littoral zoneplants of the littoral zonetwo types of plants
Q : open water zone - lake ecosystemthis extends beyond the
Q : littoral and benthic zonelittoral zonethis is the shallow
Q : biota of lakes lakes exhibit life zones so far you have
Q : oxygen stratification - lake ecosystemin most lakes oxygen
Q : y the charge n voltage remain constant ven we connect
Q : light stratification - lake ecosystemthe penetration of
Q : autumn fall overturnin autumn or early winter the air
Q : spring overturn - overturnin spring and early summer season
Q : overturn - thermal stratificationthe summer or winter
Q : winter stratification - thermal stratificationduring
Q : hypolimnion - summer stratificationthis zone forms the
Q : metalimnion - summer stratificationthis zone lies below the
Q : epilimnion - summer stratificationthis forms the upper
Q : summer stratification - thermal stratificationthermal
Q : thermal stratification - lake ecosystemshallow lakes show
Q : characteristics of lake ecosystemsthe environment of static
Q : wetlands - lentic ecosystems wetlands are permanently or
Q : impoundments - lentic ecosystems we have so far discussed
Q : lakes - lentic ecosystems most lakes occur in regions which
Q : lentic ecosystems lakes are inland depressions containing
Q : where do the apostrophes goltbrgtltbrgtthe doctors
Q : classification of freshwater ecosystemsfresh water
Q : oxygen - aquatic ecosystemoxygen is found in waters in
Q : dissolved oxygen - aquatic habitatsoxygen in the
Q : temperature - aquatic habitatsthe water temperature changes
Q : transparency - aquatic habitatstransparency affects the
Q : sunlight - aquatic habitatssunlight is a major limiting
Q : factors limiting the productivity of aquatic
Q : benthos - aquatic ecosystemthe benthos or the benthic
Q : nekton - aquatic ecosystemthis group contains animals which
Q : plankton - aquatic ecosystemthis group includes both
Q : periphyton - aquatic ecosystemthese are organisms which
Q : neuston - aquatic ecosystemthese are unattached organisms
Q : classification of aquatic organisms after discussing the
Q : aquatic ecosystem - types of ecosystemglobal waters cover
Q : exploitation of forestsexploitation of our forests for
Q : crisis due to deforestation due to continuing deforestation
Q : importance of forests - habitat and foodforests provide
Q : importance of forests - fuel woodthe forests are renewable
Q : subtropical rain forests - ecosystemin regions of fairly
Q : tropical seasonal forests - ecosystemtropical seasonal
Q : tropical rain forests - ecosystemtropical rain forests
Q : temperate rain forests - ecosystemthe temperate rain
Q : temperate evergreen forest - ecosystemmany parts of the
Q : temperate deciduous forest - ecosystemthe temperate forests
Q : coniferous forest - ecosystemcold regions with high
Q : types of forests - ecosystemthe forest biomes of the world
Q : soils of tropical and temperate forestsalthough soils of
Q : biological adaptationthese adaptations depend on the
Q : external budgets - nutrient budgetsin contrast the external
Q : internal budget - nutrient budgetsthis is concerned with
Q : nutrient budgets - nutrient cyclesnutrients are constantly
Q : human impact on the phosphorus cyclelike other
Q : phosphorus cycle - nutrient cyclesphosphorus is a very
Q : sulphur cycle - nutrient cyclesthe sulphur cycle is mostly
Q : human impact on nitrogen cycle human activities are
Q : mr vincent the manager of a large supermarket was taking a
Q : denitrification - nutrient cyclesnitrates are readily
Q : nitrification - nutrient cyclesammonia or ammonium salts
Q : ammonificationmany heterotrophic bacteria actinomycetes and
Q : non symbiotic nitrogen fixers - nutrient cyclesthere are
Q : symbiotic nitrogen fixers - nutrient cyclesof the symbiotic
Q : biological fixation - nitrogen fixationapproximately 63 of
Q : high energy fixation - nitrogen fixationthrough cosmic
Q : nitrogen fixationas we have said before atmospheric
Q : direct and bending stressesdefined neutral axisintroduced
Q : nitrogen cyclethe nitrogen is an essential constituent of
Q : human impact on carbon cyclehuman activities have greatly
Q : types of biogeochemical cyclesthere are two basic types of
Q : biogeochemical cycling - nutrient cyclesthe energy flows
Q : nutrient cyclesall ecosystems have certain common basic
Q : ecosystem balancewe take up another parameter of ecosystem
Q : ecosystem controlanother important aspect of ecosystem
Q : auxiliary food chainsin addition to grazing and detritus
Q : detritus food chainsdetritus food chains begin with dead
Q : grazing food chain - food chaingrazing food chains are
Q : food chain - ecosystemin a food chain the food energy is
Q : energy loss - energy flowlet us now take the second point
Q : direction of energy flownow let us consider the first point
Q : energy flow - ecosystemour world is a solar-powered system
Q : secondary production - ecosystem the net primary production
Q : production efficiency - ecosystemthe maximum amount of
Q : primary production - ecosystemenergy accumulated by plants
Q : stress distribution in beams1 learn the section modulus of
Q : concept of production - ecosystemsthe ecosystems are unable
Q : energy input in ecosystemsurvival and functioning of
Q : limitations of ecological pyramids the pyramid of energy is
Q : advantages of pyramid of energya pyramid of energy must be
Q : ecological pyramids - ecosystemthe ancient egyptians
Q : limiting factor - ecosystemin all ecosystems one factor
Q : read a file which has empnonameage as per fieldsyou want to
Q : decomposers - biotic componentsalso known as saprotrophs
Q : secondary and tertiary consumers - biotic componentsbesides
Q : consumers - biotic components these are also called as
Q : organic substances - abiotic componentsthese include
Q : inorganic substances - abiotic componentsthere are about
Q : ecology and ecosystemthe concepts of environment ecology
Q : transactions in sqlbegin transaction commit and rollback
Q : effects of null for multiple assignments - sqlif the row
Q : multiple assignment- sqlsql supports multiple assignment to
Q : merge and truncate in sqlsql has two more table update
Q : example of delete - sqlas with update a for portion of
Q : delete command - sqlloosely speaking delete removes some
Q : update command- sqlloosely speaking update changes some of
Q : example of except operator - sqlexample like its
Q : insert command in sqlloosely speaking insert takes the rows
Q : updating tables in sqlthe topic of updating by describing
Q : example of foreign key constraintexample alternative
Q : example of when or then constraintsa concrete example
Q : when or then key constraintssuppose a table has two columns
Q : effects of null for unique specificationwhen a unique
Q : keys in sqlsql support for keys in the following
Q : i have been given 8 differebt data warehouseing failure
Q : can anyone solve this assigmentltbrgtdlsqrt3x-5 sqrt2xl
Q : primary key - sqla primary key specification carries an
Q : example of shorthand for a row constraintexample shorthand
Q : check constraints in sqla check constraint is a table
Q : effects of null in aggregate operator - sqllet aggopx be an
Q : effects of null for table expressionheres an important
Q : between and not between operator in sqlexample restricting
Q : use of table comparisons - sqltable comparisons where it is
Q : example of not exists operator - sqlexample is a
Q : example of alternative formulation as a table
Q : purification and treatment of waterin purification and
Q : example of not exists in sqlexample use of not existscreate
Q : use of count in sqlit describes and discusses various
Q : procedural constraint enforcement triggers sql has an
Q : use of table expressions - expressing constraint
Q : when are constraints checked under the model constraints
Q : not enforced table constraintsa constraint that is not
Q : example of check constraintsexample workaround for when
Q : example of add constraint in sqlexample alternative
Q : row counterparts of table operatorssql does not have
Q : operators on tables and rowsrow extractiontuple from r sql
Q : table comparison - sqlthe following definitions for
Q : example of unwrap operator - sqlexample here shows how
Q : example of wrap operator - sqlthe effect of example can be
Q : shear forces and bending momentsa beam is a structural
Q : wrapping and unwrapping in sqloperators wrap and unwrap in
Q : unnest operator in sqlthe inverse operator of group is
Q : example of group by and collect operatorexample using group
Q : example of groupby operatorexample how many students sat
Q : example of coalesce operatorexample give the total of marks
Q : example of cast operator so long as cast is used as shown
Q : example of using aggregation on nested tablesexample how
Q : using aggregation on nested tablesexample is the most
Q : example of tables within a table - sqlexample obtaining cer
Q : max and min operator in sqlexampleselect max mark from
Q : count operator in sqlexample counting the students who have
Q : aggregate operators sqlsupports all of the aggregate
Q : semijoin and composition - sqlfor semijoin the dyadic
Q : effects of null for union - sqlthe treatment of null in
Q : semidifference via not in and a subqueryselect
Q : semidifference via except and join - sqlselect from select
Q : semidifference and not - sqlin this section first describe
Q : union all - sqlfurther varieties of union arise when we
Q : union without corresponding - sqlthe use of union without
Q : closest approximation to relational union - sqlactually
Q : union and or - sqlsql supports union explicitly but
Q : extension and and in sqlthe theory book gives the following
Q : restriction in sqlsyntaxselect distinct studentidfrom
Q : principal stresses and strainsprincipal stresses and
Q : restriction and and - sqlrestriction is available via the
Q : special cases of projectionthis section describes the
Q : enrolment was split - sqlexample shows how relvars iscalled
Q : projection in sql - correct versionstudent studentid is
Q : projection and existential quantification - sqlintuitively
Q : using rename in combination with join - sqlexample gives
Q : sql outer joinselect from iscalled natural left join
Q : explicitly specifying the join condition - sqlselect from
Q : obtaining a natural join by specifying the common
Q : definition of from - sqlrecall that the operand of from is
Q : interesting properties of cross join - sqlcompare these
Q : definition of cross join - sqllet s t1 cross join t2 where
Q : join and and in sqlin this section is all about one
Q : relational operators and logical operatorsit prepares the
Q : relational algebra - sqlit describes some operators that
Q : existential quantification - sqlexistential
Q : quantification in sqlto quantify something as the theory
Q : logical connectives - sqlsqls extended truth tables in
Q : deriving predicates from predicates in sqlthe corresponding
Q : table represents an extension - sqlit describes how each
Q : substitution and instantiation - sqlit shows how null might
Q : predicate - sqlconsider the declarative sentence-a
Q : updating a variableassignment of an attribute value in a
Q : assignment source not a literal - variablesyntaxset sn sid
Q : assignment of variable - updating a variablesyntaxset sn
Q : adding table constraints alter table enrolment add
Q : effect of anonymous columnsnow recall that a values
Q : water quality analysisthis water quality analysis presents
Q : creating a tablesyantaxcreate table enrolmentstudentid
Q : variable declaration - sqlsqls support for variables is
Q : type versus representation confusion in sqlthis describes
Q : third step at defining type sid in sqlcreate domain sid as
Q : second step at defining type sid in sql create type sid as
Q : first step at defining type sid in sqlcreate type sid as c
Q : water sources and requirementsin this part we have
Q : data types and representationsthis explains the concept
Q : effects of null in table literalwhen a values expression
Q : example of table literal - sqlexample a table literal
Q : table literals - sqlone might expect sql to support table
Q : multiset types - sqlan sql multiset is what in mathematics
Q : usefulness of data type in sql as in most computer
Q : data types in sql - xml array row binary large object for
Q : data types in sql - interval booleaninterval for values
Q : data types in sql - timestamptimestamp for values
Q : data types in sql - integerinteger or synonymously int
Q : data types in sql - decimaldecimal numeric real float and
Q : data types in sql - charactercharacter or synonymously char
Q : data types in sqlsqls concept does not differ significantly
Q : cause of indeterminacy in sqlone root cause of
Q : indeterminacy in sqlsome sql expressions are actually not
Q : example of null operator - nino ruleif we wanted to make
Q : effects of null operatoras a general rule-but not a
Q : read-only operator - sqlthe term read-only operator to the
Q : important distinctionsthe list of important distinctions
Q : effects of nullthe numeric variable x perhaps of type
Q : sqls fifth concept - null unfortunately sql embraces a
Q : updating by insertionsyntaxinsert into enrolmentvalues sid
Q : updating by replacementsyntaxupdate enrolment set name
Q : updating by deletiondelete from enrolment where studentid
Q : updating variablesfor assignment sql uses the key word set
Q : authorisations - privilegesas relational theory is silent
Q : programmes directed towards the common crop plantsthese
Q : types of mechanism - stress conditionplants have evolved a
Q : induction of defensive barriers in plants several polymers
Q : protection of plants against toxic substancesplants produce
Q : response to woundingwounding of tomato plants by mechanical
Q : induction of disease resistance in plants by heat-shockthe
Q : production of substances interfering with virus
Q : induction of antimicrobial substances phytoalexins are
Q : ethylene production - responses to infectionethylene is
Q : induction of hydrolases - responses to infectionplants do
Q : response to floodingprolonged flooding or water-logging
Q : cold hardiness and cold acclimationin connection with cold
Q : types of stress caused by freezingthus freezing can cause
Q : response to cold - responses of plants to stresslet us
Q : heat-shock responsewhen growing plantlets or tissues of
Q : response to heavy metal stress several heavy metals
Q : osmotic adjustment or osmoregulation - osmotic stressif
Q : light stress in chloroplastsas mentioned earlier very high
Q : photosynthesis - responses of plants to
Q : water stress - responses of plants to stresswater stress in
Q : plant responses to specific stress conditionsby now you
Q : use of alternate metabolic pathwaysplants surviving under
Q : long-term responses - behaviour of plantsplants alter their
Q : quick transient responses - behaviour of plantssuch
Q : morphological changesaquatic plants produce different kinds
Q : quantitative changesthe quantitative changes in the
Q : qualitative changesthe qualitative changes in the structure
Q : changes in the conformation of molecules - qualitative

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