InterviewSolution
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InterviewSolution
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.
| 301. |
Which iof the following plant do not offer reward and employs sexual deceit to get pollination done by a species of bee?A. Ophrys speciesB. Mediterranean orchidC. PronubaD. Both A and B |
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Answer» Correct Answer - D The Ophrys (Mediterranean orchid) do not offer reward and employs sexual to get pollination done by a species of bee. |
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| 302. |
Competition for food, light, and space is most severe between twoA. Closely related species growing in the same area (in the same niche)B. Closely related species growing in different habitatC. Distantly related species growing in the same habitatD. Distantly related species growing in different habitat |
| Answer» Correct Answer - A | |
| 303. |
Orchids show a bewildering diversity of floral pattern and attract the pollinating agent which isA. BeesB. BumblebeesC. BatsD. Both A and B |
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Answer» Correct Answer - D Orchids shows a bewildering divesity of floral pattern and attract the right pollinating agent (bees and bumblebee). |
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| 304. |
Succession in a water body leads to formation ofA. Mesophytic vegetationB. Xerophytic vegetationC. Halophytic vegetationD. Epiphytic vegetation |
| Answer» Correct Answer - A | |
| 305. |
Plants and animals living in a particular area consitituteA. Flora and faunaB. CommunityC. EcosystemD. Ecology |
| Answer» Correct Answer - B | |
| 306. |
Stable plant community formed during succession is called:-A. Sere communityB. Climax communityC. Dominant communityD. Ecotone |
| Answer» Correct Answer - B | |
| 307. |
In higher plants, which structure serve as means to tide over period of stress and also helping in dispersalA. SeedB. Vegetative reproductive structures/propagulesC. Both A and BD. Spores |
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Answer» Correct Answer - C In higher plants, seeds and some other vegetative reproductive structure serve as means to tide over period of stress and also help in the dispersal. They do so by reducing their metabolic activity and goin into a state of doormany. |
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| 308. |
Germination of seed inside the fruit which is still attached to the parent plant is known asA. ParthenocarpyB. ParasitismC. CommensalismD. Vivipary |
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Answer» Correct Answer - D Germination of seed inside the fruite which is still attached to the parent plant is known as vivipary. |
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| 309. |
Unlike in other plants, leaves of cactus serve the twins pose ofA. Photosynthesis and transpirationB. Transpiration and vegetative propogationC. Protection and water conservationD. Water storage and photosynthesis |
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Answer» Correct Answer - C Unlike in other plants, leaves of cactus serve the twin purpose of protection and water conservation. |
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| 310. |
Under unfavourable conditions many zooplankton species in lakhs and ponds enterA. DiapauseB. HibernationC. AestivationD. None of the above |
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Answer» Correct Answer - A Under unfavourable conditions many zooplankton species in lakes and ponds enter diapause a stage of suspended development. |
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| 311. |
Which of the following is likely to be found in the deepest waters?A. Red algaeB. Green algaeC. Brown algaeD. All of the above |
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Answer» Correct Answer - A Among the red, green and brown algage, red algae is likely to be found in the deepest water. |
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| 312. |
Plants require sun light for theirA. PhotosynthesisB. Photoperiodic requirement for floweringC. Migratory activitiesD. Both A and B |
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Answer» Correct Answer - D Plants require sunlight for their photosynthesis and photoperiodic requirement for flowering. |
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| 313. |
Ow much deep in the oceans, the environment is perpetually dark and its inhabitants are not aware of the existense of Sun?A. gt3500 mB. gt500 mC. gt500 feetD. gt3500 feet |
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Answer» Correct Answer - B Deep (`gt` 500m) in the ocean, the environment is perpetually dark and its inhabitants are not aware of the existence of Sun. |
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| 314. |
Match the following Columns. A. `{:(A,B,C,D),(1,2,3,4):}`B. `{:(A,B,C,D),(4,3,2,1):}`C. `{:(A,B,C,D),(4,2,1,3):}`D. `{:(A,B,C,D),(1,2,4,3):}` |
| Answer» Correct Answer - B | |
| 315. |
Match the following Columns. A. `{:(A,B,C,D),(1,2,3,4):}`B. `{:(A,B,C,D),(4,3,2,1):}`C. `{:(A,B,C,D),(1,2,4,3):}`D. `{:(A,B,C,D),(4,1,2,3):}` |
| Answer» Correct Answer - D | |
| 316. |
Match the following Columns. A. `{:(A,B,C,D),(3,2,1,4):}`B. `{:(A,B,C,D),(1,2,3,4):}`C. `{:(A,B,C,D),(4,3,1,2):}`D. `{:(A,B,C,D),(1,2,3,4):}` |
| Answer» Correct Answer - A | |
| 317. |
Match the following Columns A. `{:(A,B,C,D),(4,1,2,5):}`B. `{:(A,B,C,D),(3,5,4,1):}`C. `{:(A,B,C,D),(4,5,1,2):}`D. `{:(A,B,C,D),(3,5,1,4):}` |
| Answer» Correct Answer - C | |
| 318. |
Match the following Columns. A. `{:(A,B,C,D),(2,4,3,1):}`B. `{:(A,B,C,D),(3,2,1,5):}`C. `{:(A,B,C,D),(2,3,4,1):}`D. `{:(A,B,C,D),(3,4,1,5):}` |
| Answer» Correct Answer - D | |
| 319. |
To complete its life-cycle human liver fluke depends onA. One intermediate host`-`snailB. One intermediate host`-`snailC. Two intermediate hosts`-`snail and sheepD. Two intermediate hosts`-`snail and fish |
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Answer» Correct Answer - D To complete its life-cycle human liver fluke depends on two intermediate hosts-a snail and a fish. |
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| 320. |
The relationship between epiphytes and tree isA. parasitismB. protocooperationC. commensalismD. amensalism |
| Answer» Correct Answer - C | |
| 321. |
Assertion Individual of a species makes a community. Reason Groups of different species of individuals make a population.A. If both Assertion and Reason are true and the Reason is the correct explanation of AssertionB. If both the Assertion and Reason are true, but the Reason is not the correct explanation of AssertionC. If Assertion is true, but the Reason is falseD. Both Assertion and Reason are false |
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Answer» Correct Answer - D Individuals of same species make up a population of organisms, while a community is a group of populations of different species living together in a particular area at a particular time. |
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| 322. |
Assertion Epiphytes are attached on the other plants. Reason They obtain their nutrition from host plants.A. If both Assertion and Reason are true and the Reason is the correct explanation of AssertionB. If both the Assertion and Reason are true, but the Reason is not the correct explanation of AssertionC. If Assertion is true, but the Reason is falseD. If Assertion is false, but the Reason is true |
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Answer» Correct Answer - C Epiphytes grow on the branches of other plants for support and not for nourishment. |
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| 323. |
What is the effect of the parasite on host?A. Parasite may reduce the survivial, growth and reproduction of the hostB. Parasite reduce the population denisty of hostC. Parasite may render the host more vulnerable to predation by making it physically weakD. All of the above |
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Answer» Correct Answer - D a) Majority of parasites harm the host: they may reduce the survival, growth and reproduction of the host and reduce the population density. b) They may render the host more vulnerable to predation by making it physically weak. |
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| 324. |
The organisms, which spend their life on the body of a living host are calledA. ectoparasitesB. endosparasitesC. semi-parasitesD. hyper-parasites |
| Answer» Correct Answer - A | |
| 325. |
The significance of temperature to living organisms is appreciable because it affectsA. Kinetics of the enzymesB. Basam metabolism and activityC. Physiological functions of the organismD. All of the above |
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Answer» Correct Answer - D The significance of temperature to living organism is appreciable because it affects kinetics of the enzymes and through if the, basal metabolism, activity and physiological functions of the organism. |
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| 326. |
Population connected by despersing individuals is calledA. demeB. communityC. metapopulationD. None of these |
| Answer» Correct Answer - C | |
| 327. |
The average temperature on land variesA. SeasonallyB. Decreases progressively from the poles towards the equatorC. Decrease progressively from mountain tops to the plainsD. All of the above |
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Answer» Correct Answer - A Average temperature on land varies seasonally decreases progressively from the equator towards the poles and from plains to the moutain tops. |
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| 328. |
Read the following statements and find out the incorrect statement(s).A. Mango trees do not and cannot grow in tropicalB. Snow leopards are not found in Kerala forestsC. Tuna fish are rarely caught beyond tropical latitudes in the ocean.D. Both A and C |
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Answer» Correct Answer - A Mango trees do not cannot grow in temperate countries like Canada and Germany. |
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| 329. |
Increase in number of individuals in a population representsA. NatalityB. MortalityC. DensityD. Diversity |
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Answer» Correct Answer - A Increase in number of individuals in a populations represents natality. |
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| 330. |
In which of the following habitats, the average temperatures exceed `100^o` C?A. Thermal springsB. Deep-sea hydrothermal ventsC. Tropical deserts in summerD. Both A and B |
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Answer» Correct Answer - D In some unique habitats such as thermal springs and deep sea hydrothermal vents where average temperature exceeds `100^(@)`C. |
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| 331. |
Natality isA. Total number of individuals present per unit area at a given timeB. Increase in number of individuals in a population under given environmental conditionsC. Loss of individuals due to death in a population under environmental conditionsD. Movement of individuals into and out of population. |
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Answer» Correct Answer - B Natality is increase in numberof individuals in a populations under given environmentla conditions. |
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| 332. |
Define phenotypic adaptation. Give one example. |
| Answer» Phenotypic adaptation involves nongenetic changes in individuals such as physiological modifications such as acclimatization or behavioural changes . | |
| 333. |
Geometric reproduction of age structure is a characteristis ofA. Biotic communityB. PopulationC. EcosystemD. Landscape |
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Answer» Correct Answer - B Geometric representation of age structure is a characteristic of population. |
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| 334. |
The Verhulst-Pearl logistic growth is described to the equation `(dN)/(dt)=rN(K-N)/K`, in this K standA. Temperature in degree KelvinB. Intrinsic rate of natural increaseC. Carrying capacityD. Population density |
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Answer» Correct Answer - C The Verhurts-Pearl logistic growth is described using the equation `(dN)/(dt)=rN(K-N)/K`, in this K stand for carrying capacity. |
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| 335. |
Most living organisms cannot survive at temperature above `45^(@)C^(@)`. How are some microbes able to live in habitats with temperatures exceeding ` 100^(@)C?` |
| Answer» Archaebacteria (Thermophiles) are ancient forms of bacteria found in hot water springs and deep sea hydrothermal vents. They are able to survive in high temperatures (which far exceed `100^(@)C`) because their bodies have adapted to such environmental conditions. These organisms contain specialized thermo-resistant enzymes, which carry out metabolic functions that do not get destroyed at such high temperatures. | |
| 336. |
In change in population size, `N_t` = `N_0` + B + I - D - E. What do I, B, D stand for?A. Immigration, mortality, natalityB. Immigration, natality, mortalityC. Emigration, natality, mortalityD. Mortality, natality and immigration |
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Answer» Correct Answer - B Whatever might be the ultimate reasons, the density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes- metality, mortality, immigration and emigration. |
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| 337. |
In nature, plants, animals and microbes interact in various ways to form a/anA. PopulationB. CommunityC. EcosystemD. Biome |
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Answer» Correct Answer - B In nature, plants, animals and microbes interact in various ways to form a community. |
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| 338. |
The interacting species (A and B) live closely together inA. Predation, parasitism and competitionB. Mutualism, competiton and amensalismC. Predation, competition and commensalismD. Predation, parasitism and commensalism |
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Answer» Correct Answer - D Predation, parasitim, Commensalism share a common characteristic- the interacting species live closely together. |
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| 339. |
The integral form of exponential growth equation will beA. `N_(0)=N_(t)e^(rt)`B. `N_(t)-N_(o)=e^(rt)`C. `N_(t)=N_(o)e^(rt)`D. `(N_(t))/(N_(o))=(1)/(e^(rt))` |
| Answer» Correct Answer - C | |
| 340. |
The maximum number of individuals of a population which can be supported with optimum resources for their survival is calledA. Biotic potentialB. Carrying capacityC. Environmental resistanceD. Potential natality |
| Answer» Correct Answer - B | |
| 341. |
Who stated that human population grows geometrically?A. MalthusB. DarwinC. CannonD. Lamarck |
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Answer» Correct Answer - A Malthus calculated that, though the number of organisms can increase geometrically (1, 2, 4, 8, 16, ………), their food supply increases arithmatically (1, 2, 3, 4, ……). |
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| 342. |
Soil transported by air isA. AlluvialB. ColluvialC. GlacialD. Eolian |
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Answer» Correct Answer - D Soil transported by air is eolian. |
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| 343. |
The nature and properties of soil in different places very, it is dependent on the a. Climate b. Weathering process c. Whether soil is transported or sedimentary How soil development occurredA. a, b and cB. b, c and dC. a, c and dD. a, b, c and d |
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Answer» Correct Answer - D The nature and properties of soil in different places vary: it is dependent on the: a) Climate b) Weathering process. c) Whether soil is transported or sedimentary d) How soil development occurred. |
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| 344. |
Assertion: The sex of kerala is highest in India. Reason: In countries like India the population is increased at a rapid rateA. If both assertion and reason are true and the reason is a correct explanation of the assertion.B. If both assertion and reason are true but reason is not a correct explanation of the assertion.C. If the assertion is true but reason is false.D. If both the assertion and reason are false. |
| Answer» Correct Answer - B | |
| 345. |
If a freshwater fish is placed in an aquatium containing sea water, will the fish be able to survive? Explain giving reasons. |
| Answer» No, a freshwater fish placed in the aquarium containing sea water, will not be able to survive. Because, its body system is adapted to function normally in a narrow range of salinity and it cannot survive in the high salinity of sea water. | |
| 346. |
Viviparity and pneumatophores are features ofA. hydrophytesB. halophytesC. mesophytesD. xerophytes |
| Answer» Correct Answer - B | |
| 347. |
Physical and chemical conditions of soil are studied underA. Topographic factorsB. Edaphic factorsC. Biotic factorsD. Climatic factors |
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Answer» Correct Answer - B Physical and chemical conditions of soil are studied under edaphic factors. |
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| 348. |
Population where pre-reproductive animals occur in large number isA. DecliningB. StableC. FluctuatingD. Growing |
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Answer» Correct Answer - D Population where pre-reproductive animals occur in large number is growing/expanding. |
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| 349. |
Pneumatophores are found inA. xerophytesB. hygrophytesC. mesophytesD. halophytes |
| Answer» Correct Answer - D | |
| 350. |
Small fish get stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called as :A. antibiosisB. commensalismC. predationD. parasitism |
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Answer» Correct Answer - B In commensalism, association between the members of different species is made in the way that nor one is benefitted and neither is harmed. For example, small fish (sucker fish) gets stuck near the bottom of a shark with the help of its holdfast (modified dorsal fin) and is dispersed to distant area. It also gets protection due to association with shark and derives its nutrition also. However, the shark does not get any benefit or harm from the sucker fish. |
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