784 + Interview Questions in ORGANISMS-AND-POPULATIONS IN GENERAL AWARENESS Page 5 InterviewSolution

201.	Fill in the blanks : (i) Oxylophytes are the plants growing on`…………` and chasmophytes are the plants growing in ……….
Answer» Correct Answer - Acidic soil , rock crevices

Discussion

202.	Number of immigration is more than emigration and death is lower than natality. Growth curve of population will showA. Exponential phaseB. Lag phaseC. Declining phaseD. Steady phase
Answer» Correct Answer - A Number of immigration is more than emigration and death is lower than natality. Growth curve of population will show exponential phase.

Discussion

203.	Permanent decrease in population would occur due toA. MigrationB. NatalityC. EmigrationD. Mortality
Answer» Correct Answer - D Permanent decrease in population would occur due to mortalit.

Discussion

204.	Organisms that cannot maintain a constant internal environment are known asA. regulatorsB. conformersC. partial regulatorsD. partial conformers
Answer» Correct Answer - B

Discussion

205.	Heat loss or heat gain is the function ofA. Surface areaB. Body volumeC. Body weightD. Body size
Answer» Correct Answer - A Heat loss or heat gain is the function of surface area.

Discussion

206.	AESTIVATION
Answer» Aestivation is a behavioural adaptation to avoid exterme heat and dessication in summer season. In which the organism slows down its metabolic activities. It is also known as summer sleep.

Discussion

207.	Thermoregualtion is energetically expensive for many orgainsms particularlyA. Small animalsB. ShrewsC. Humming birdsD. All of the above
Answer» Correct Answer - D Thermoregulation is energetically expensive for many organisms particulary small animals like shres and humming birds.

Discussion

208.	Homeostasis is
Answer» Homeostasis is the tendency of the organism to maintain a constant internal environment despite varying external environmental conditions like temperature.

Discussion

209.	The stage of suspended development shown by zooplanktons is called:A. HibernationB. DiapauseC. AestivationD. Migration
Answer» Correct Answer - B

Discussion

210.	Organisms which have a wide range of salinty to leracnce are called as ________.
Answer» Correct Answer - Euryhaline

Discussion

211.	In ________ environment the sediment characteristics often detemine the type of benthic animals.
Answer» Correct Answer - Aquatic

Discussion

212.	Tropical rain forests are found inA. AndamansB. BiharC. Himachal PradeshD. Jammu and Kashmir
Answer» Correct Answer - A Tropical rain forests are found in Andamans.

Discussion

213.	In which of the following zone, deciduous forests are found?A. TropicalB. SubtropicalC. TemperateD. Antarctic
Answer» Correct Answer - B

Discussion

214.	Which one of these is an edaphic factor?A. WaterB. AirC. SoilD. Wind
Answer» Correct Answer - C

Discussion

215.	The organism in which body temperature changes with the ambient temperature and in aquatic animals, the osmotic concentration of the body fluid change with that of the ambient water osmotic concentration. These animals and plants are simplyA. RegulatorsB. ConformersC. MigratoryD. Hibernating
Answer» Correct Answer - B The organism in which body temperature changes with the ambient temperature and in square animals, the osmotic concentration of the body fluid change with that of the ambient water osmotic concentrations. These animals and plants are simply conformers.

Discussion

216.	The floating leaves of an aquatic plant hasA. stomata on the upper surfaceB. stomata on the lower surfaceC. stomata on both the surfacesD. no stomata
Answer» Correct Answer - A

Discussion

217.	The correct percentage of `CO_(2)` in atmosphere isA. `0.03%`B. `0.3%`C. `1%`D. `1.1%`
Answer» Correct Answer - A

Discussion

218.	5th June isA. World Environment DayB. World AIDS DayC. World Womens DayD. World Polio Day
Answer» Correct Answer - A

Discussion

219.	In aquatic environment, microscopic animals and plants are collectively known asA. planktonB. herbivoreC. commensalsD. flora and fauna
Answer» Correct Answer - A

Discussion

220.	Zoochlorellae in Hydra produces an association calledA. CommensalismB. ParasitismC. MutualismD. Predation
Answer» Correct Answer - C Zoochlorellae in Hydra produces an association called mutualism.

Discussion

221.	What does the term "biota " mean ?
Answer» Correct Answer - Flora and fauna of a place.

Discussion

222.	Community is defined an aggregation of:-A. Individuals of the same kindB. Individuals of different kindsC. Individuals of a populationD. Populations of different species
Answer» Correct Answer - d

Discussion

223.	The sphere of living matter found on the surface of earth comprisesA. lithosphereB. hydrosphereC. atmosphereD. biosphere
Answer» Correct Answer - D

Discussion

224.	Specialised pollinaters areA. critical link speciesB. keystone speciesC. network speciesD. biospecies
Answer» Correct Answer - A

Discussion

225.	When birth rate equals death rate, it is calledA. plateau stageB. exponential growth stageC. early growth stageD. acceleration stage
Answer» Correct Answer - A

Discussion

226.	In meromictic lakes, the number of turnovers of water per year isA. 1B. 2C. ManyD. Zero
Answer» Correct Answer - D

Discussion

227.	Profession of an organism isA. climateB. habitatC. ecologyD. niche
Answer» Correct Answer - D

Discussion

228.	Which of the following is known as the address of an organism?A. HabitatB. MicrohabitatC. NicheD. Both (a) and (c )
Answer» Correct Answer - A

Discussion

229.	An obligate root parasite isA. ViscumB. StrigaC. LoranthusD. Rafflesia
Answer» Correct Answer - D

Discussion

230.	Arbuscules are formed inA. ectomycorrhizaB. endomycorrhizaC. fungiD. algae
Answer» Correct Answer - B

Discussion

231.	Animal-plant mutalism is seen inA. orchid and beeB. fig and waspC. fig and birdD. Both (a) and (b)
Answer» Correct Answer - D

Discussion

232.	Praying mantis is a good example of :A. CamouflageB. Warning colourationC. Mullerian mimicryD. Social insect.
Answer» Correct Answer - A Praying Mantis is a good example of camouflage.

Discussion

233.	The bottom zone in a lake is calledA. LimneticB. ProfundalC. BenthicD. Littoral
Answer» Correct Answer - C

Discussion

234.	Organisms living at the bottom of a lake areA. NektonB. BenthosC. PlanktonD. Pelagic
Answer» Correct Answer - B Orgaism living at the bottom of a lake are benthos.

Discussion

235.	Biotic factors refer toA. Gases produced by industriesB. Nutrient deficient soilsC. Living organismsD. Fossil fuels
Answer» Correct Answer - C Biotic factors refer to living organism.

Discussion

236.	Tropical plants Prosopis, Acacia and Cappar is belong toA. Deciduous forestB. Evergreen forestsC. Grass landsD. Thorn forests
Answer» Correct Answer - D

Discussion

237.	Tropical plants Prosopis, Acacia and Cappar is belong toA. Evergreen forestB. Deciduous forestC. GrasslandD. Thorn forest
Answer» Correct Answer - D Tropical plants Prospis, Acacia and Capparis belong to thorn forest.

Discussion

238.	Assertion : Chamaeleon can change its colour . Reason : It is a fashionable animal .A. If both A and R are true and R is the correct explanation of A .B. If both A and R are true but R is not the correct explanation of A .C. If A is true but R is false .D. If both A and R are are false .
Answer» Correct Answer - C

Discussion

239.	Trematomus is able to tolerate cold environment due to presence ofA. glycerolB. antifreeze proteinsC. sucroseD. Both (a) and (b)
Answer» Correct Answer - D

Discussion

240.	Assertion : Leguminous plants can grow well in `N_(2)`- deficient soils . Reason : They need little nitrogen .A. If both A and R are true and R is the correct explanation of A .B. If both A and R are true but R is not the correct explanation of A .C. If A is true but R is false .D. If both A and R are are false .
Answer» Correct Answer - C

Discussion

241.	Oligotropic soils are found inA. tropical rainforestB. temperate rainforestC. grasslandD. savanna
Answer» Correct Answer - A

Discussion

242.	When seedling-grows sufficiently before it falls from parent plants the mechanism is known asA. pollinationB. ovipositionC. viviparyD. ovipary
Answer» Correct Answer - C

Discussion

243.	Dunaliella osmoregulate their body due to the presence ofA. glycolB. glycerolC. alcoholD. sucrose
Answer» Correct Answer - B

Discussion

244.	For many animals, light is important in that they use the diurnal and seasonal variations in light intensity and duration (photoperiod) as cues for timing theirA. Foraging activitiesB. Reproductive activitiesC. Migratory activitiesD. All of the above
Answer» Correct Answer - D For many animals, light is important in that they use the diurnal and seasonal variations in light intensity and duration (photoperiod) as cues for timing their foraging activities, reproductive activities and migratory activities.

Discussion

245.	Most of the desert plants bloom during night times becauseA. their blooming is controlled by low temperatureB. they are sensitive to the phases of moonC. the desert insects eat away flowers during daytimesD. the desert insects are active during night time.
Answer» Correct Answer - D

Discussion

246.	Assertion : Lizards storm toward light at night . Reason : Lizards do not like darkness .A. If both A and R are true and R is the correct explanation of A .B. If both A and R are true but R is not the correct explanation of A .C. If A is true but R is false .D. If both A and R are are false .
Answer» Correct Answer - C

Discussion

247.	Industrial melanism is an example ofA. defensive adaptation of skin against UV radiationsB. drug resistanceC. protective resemblance with the surroundingD. darkening of skin due to industries.
Answer» Correct Answer - C

Discussion

248.	The greatest problem of water conservation is to reduce the amount ofA. precipitationB. run off waterC. ground waterD. evaporatio
Answer» Correct Answer - B

Discussion

249.	The least porous soil among the following is a:A. loamy soilB. silty soilC. clayer soilD. peaty soil
Answer» Correct Answer - C

Discussion

250.	Least porous soil isA. clayey soilB. sandy soilC. loamy soilD. gravelly soil
Answer» Correct Answer - A

Discussion

Explore topic-wise InterviewSolutions in .

Fill in the blanks : (i) Oxylophytes are the plants growing on`…………` and chasmophytes are the plants growing in ……….

Number of immigration is more than emigration and death is lower than natality. Growth curve of population will showA. Exponential phaseB. Lag phaseC. Declining phaseD. Steady phase

Permanent decrease in population would occur due toA. MigrationB. NatalityC. EmigrationD. Mortality

Organisms that cannot maintain a constant internal environment are known asA. regulatorsB. conformersC. partial regulatorsD. partial conformers

Heat loss or heat gain is the function ofA. Surface areaB. Body volumeC. Body weightD. Body size

AESTIVATION

Thermoregualtion is energetically expensive for many orgainsms particularlyA. Small animalsB. ShrewsC. Humming birdsD. All of the above

Homeostasis is

The stage of suspended development shown by zooplanktons is called:A. HibernationB. DiapauseC. AestivationD. Migration

Organisms which have a wide range of salinty to leracnce are called as ________.

In ________ environment the sediment characteristics often detemine the type of benthic animals.

Tropical rain forests are found inA. AndamansB. BiharC. Himachal PradeshD. Jammu and Kashmir

In which of the following zone, deciduous forests are found?A. TropicalB. SubtropicalC. TemperateD. Antarctic

Which one of these is an edaphic factor?A. WaterB. AirC. SoilD. Wind

The organism in which body temperature changes with the ambient temperature and in aquatic animals, the osmotic concentration of the body fluid change with that of the ambient water osmotic concentration. These animals and plants are simplyA. RegulatorsB. ConformersC. MigratoryD. Hibernating

The floating leaves of an aquatic plant hasA. stomata on the upper surfaceB. stomata on the lower surfaceC. stomata on both the surfacesD. no stomata

The correct percentage of `CO_(2)` in atmosphere isA. `0.03%`B. `0.3%`C. `1%`D. `1.1%`

5th June isA. World Environment DayB. World AIDS DayC. World Womens DayD. World Polio Day

In aquatic environment, microscopic animals and plants are collectively known asA. planktonB. herbivoreC. commensalsD. flora and fauna

Zoochlorellae in Hydra produces an association calledA. CommensalismB. ParasitismC. MutualismD. Predation

What does the term "biota " mean ?

Community is defined an aggregation of:-A. Individuals of the same kindB. Individuals of different kindsC. Individuals of a populationD. Populations of different species

The sphere of living matter found on the surface of earth comprisesA. lithosphereB. hydrosphereC. atmosphereD. biosphere

Specialised pollinaters areA. critical link speciesB. keystone speciesC. network speciesD. biospecies

When birth rate equals death rate, it is calledA. plateau stageB. exponential growth stageC. early growth stageD. acceleration stage

In meromictic lakes, the number of turnovers of water per year isA. 1B. 2C. ManyD. Zero

Profession of an organism isA. climateB. habitatC. ecologyD. niche

Which of the following is known as the address of an organism?A. HabitatB. MicrohabitatC. NicheD. Both (a) and (c )

An obligate root parasite isA. ViscumB. StrigaC. LoranthusD. Rafflesia

Arbuscules are formed inA. ectomycorrhizaB. endomycorrhizaC. fungiD. algae

Animal-plant mutalism is seen inA. orchid and beeB. fig and waspC. fig and birdD. Both (a) and (b)

Praying mantis is a good example of :A. CamouflageB. Warning colourationC. Mullerian mimicryD. Social insect.

The bottom zone in a lake is calledA. LimneticB. ProfundalC. BenthicD. Littoral

Organisms living at the bottom of a lake areA. NektonB. BenthosC. PlanktonD. Pelagic

Biotic factors refer toA. Gases produced by industriesB. Nutrient deficient soilsC. Living organismsD. Fossil fuels

Tropical plants Prosopis, Acacia and Cappar is belong toA. Deciduous forestB. Evergreen forestsC. Grass landsD. Thorn forests

Tropical plants Prosopis, Acacia and Cappar is belong toA. Evergreen forestB. Deciduous forestC. GrasslandD. Thorn forest

Assertion : Chamaeleon can change its colour . Reason : It is a fashionable animal .A. If both A and R are true and R is the correct explanation of A .B. If both A and R are true but R is not the correct explanation of A .C. If A is true but R is false .D. If both A and R are are false .

Trematomus is able to tolerate cold environment due to presence ofA. glycerolB. antifreeze proteinsC. sucroseD. Both (a) and (b)

Oligotropic soils are found inA. tropical rainforestB. temperate rainforestC. grasslandD. savanna

When seedling-grows sufficiently before it falls from parent plants the mechanism is known asA. pollinationB. ovipositionC. viviparyD. ovipary

Dunaliella osmoregulate their body due to the presence ofA. glycolB. glycerolC. alcoholD. sucrose

For many animals, light is important in that they use the diurnal and seasonal variations in light intensity and duration (photoperiod) as cues for timing theirA. Foraging activitiesB. Reproductive activitiesC. Migratory activitiesD. All of the above

Most of the desert plants bloom during night times becauseA. their blooming is controlled by low temperatureB. they are sensitive to the phases of moonC. the desert insects eat away flowers during daytimesD. the desert insects are active during night time.

Assertion : Lizards storm toward light at night . Reason : Lizards do not like darkness .A. If both A and R are true and R is the correct explanation of A .B. If both A and R are true but R is not the correct explanation of A .C. If A is true but R is false .D. If both A and R are are false .

Industrial melanism is an example ofA. defensive adaptation of skin against UV radiationsB. drug resistanceC. protective resemblance with the surroundingD. darkening of skin due to industries.

The greatest problem of water conservation is to reduce the amount ofA. precipitationB. run off waterC. ground waterD. evaporatio

The least porous soil among the following is a:A. loamy soilB. silty soilC. clayer soilD. peaty soil

Least porous soil isA. clayey soilB. sandy soilC. loamy soilD. gravelly soil