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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.
| 601. |
One species is harmed whereas the other is unaffected. Such type of interaction is calledA. CommensalismB. AmensalismC. ParasitismD. Predation |
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Answer» Correct Answer - B One species is harmed whereas the other is unaffected. Such type of interaction is called amensalism. |
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| 602. |
Browsing of animsl is an example ofA. CommensalismB. PredationC. ParasitismD. Amensalism |
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Answer» Correct Answer - B Browsing of animals is an example of predation. |
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| 603. |
Alien species introduced into lake Victoria that was responsible for the extinction of cichilid species isA. African CatfishB. MurrelsC. Water HyacinthD. Nile perch |
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Answer» Correct Answer - D Alien species introduced into lake Victoria that was responsible for extinction of cichlid species is Nile perch. |
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| 604. |
Natality increases theA. population densityB. population sizeC. number of organisms in the populationD. All of the above |
| Answer» Correct Answer - D | |
| 605. |
Only gas present is stratophere isA. HeB. BeC. `O_(3)`D. `N_(2)` |
| Answer» Correct Answer - C | |
| 606. |
Natality refers toA. Death rateB. Birth rateC. Number of individuals the habitatD. Number of individuals entering a habitat. |
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Answer» Correct Answer - B Natality refers to birth rate. |
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| 607. |
Mycorrhizae are the example ofA. AmensalismB. AntibiosisC. MutualismD. Fungistasis |
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Answer» Correct Answer - C Mycorrhizae are the exmple mutualism. |
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| 608. |
Animals that rely on the heat from the environment , rather than of metabolism, to raise their body temperature are, in the strict sense, calledA. ecothermicB. poikilothemicC. homeothemicD. endothemic |
| Answer» Correct Answer - A | |
| 609. |
Define Heterophylly . |
| Answer» Occurrence of more than one type of leaves . | |
| 610. |
Lapse rate in troposphere isA. `6.4^(@)C//100` metreB. `5.5^(@)C//100` metreC. `10^(@)C//100` metreD. `6.4^(@)C//1000` metre |
| Answer» Correct Answer - D | |
| 611. |
Give the formula for determining the population density of a place . |
| Answer» D (Density ) = `(N("Population"))/(S ("Area"))` | |
| 612. |
What are mycorrhizae ? |
| Answer» Mutualistic association between higher plant roots and fungi . | |
| 613. |
Animals that rely on the heat from the environment , rather than of metabolism, to raise their body temperature are, in the strict sense, calledA. ectothermicB. poikilothemicC. homeothemicD. endothemic |
| Answer» Correct Answer - A | |
| 614. |
What is the carrying capacity of environment ? |
| Answer» Availability of resources to support the population. | |
| 615. |
Which of the following element of environment is represented by lithosphere?A. LandB. SeaC. AirD. Soil |
| Answer» Correct Answer - A | |
| 616. |
The carrying capacity of environment for a given population can be represented by the equationA. `dN=rN-(N)/(K)`B. `(dN)/(dt)=rN-(N)/(K)`C. `(dN)/(dt)=rN-(1)/(K)`D. `(dN)/(dt)=rN(1-(N)/(K))` |
| Answer» Correct Answer - D | |
| 617. |
The carrying capacity of environment for a given population can be represented by the equationA. dN = rN - `(N)/(K)`B. `(dN)/(dt) = rN - (N)/(K)`C. `(dN)/(dt) = rN - (1)/(K)`D. `(dN)/(dt) = rN (1 - (N)/(K))` |
| Answer» Correct Answer - D | |
| 618. |
The species, though insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as:A. extinct speciesB. keystone speciesC. endemic speciesD. sacred species |
| Answer» Correct Answer - B | |
| 619. |
If a marine fish is placed in a fresh water aquarium, will the fish be able to survive? Why or why not? |
| Answer» If a marine fish is placed in a fresh water aquarium, then its chances of survival will diminish. This is because their bodies are adapted to high salt concentrations of the marine environment. In fresh water conditions, they are unable to regulate the water entering their body (through osmosis). Water enters their body due to the hypotonic environment outside. This results in the swelling up of the body, eventually leading to the death of the marine fish. | |
| 620. |
Which are true about the following statements about kangaroo rats (a) They have dark colour, high rate of reproduction and excrete solide urine (b) They do not drink water, breathe at slow rate, and have their body covered with thick hair (c) The feed on dry seeds and do not require drinking water (d) They excrete very concentrated urine and do not use water to regulate body temperatureA. 3 and 1B. 1 and 2C. 3 and 4D. 2 and 3 |
| Answer» Correct Answer - C | |
| 621. |
Dominant species represents most abundant :A. species having major effect on physical environmentB. shrubs that appears for the first timeC. treesD. herbs that binds the soil |
| Answer» Correct Answer - A | |
| 622. |
Quercus species is the dominant component inA. Tropical rain forestsB. Temperate deciduous forestsC. Alpine forestsD. Scrub forests |
| Answer» Correct Answer - B | |
| 623. |
Quercus species is the dominant component inA. Temperature forestB. Tropical rain forestC. Alpine forestD. Scrub forest |
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Answer» Correct Answer - A Quercus specis are dominant component of tempeature forest. |
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| 624. |
Sun loving plants are |
| Answer» Correct Answer - Heliphytes . | |
| 625. |
Name two dominant plant species of mangrooves . |
| Answer» Correct Answer - Avicennia and Rhizophora . | |
| 626. |
Shade plants are also termed….. . |
| Answer» Correct Answer - Sciophytes . | |
| 627. |
Cold-blooded animals are thoseA. cold to touchB. which have cold bloodC. which live in cold environmentD. which cannot regulate their body temperature |
| Answer» Correct Answer - D | |
| 628. |
The maintenance of internal favourable conditions, by a self-regulated mechanisms in spite of the fact that there are changes in environment, is known asA. entropyB. enthalpyC. homoeostasisD. steady state |
| Answer» Correct Answer - C | |
| 629. |
Assertion : Proline and chaperonins are widespread in plants of cold regions . Reason : Proline and chaperonins prevent freezing .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 - D | |
| 630. |
Plants that suffer dryness both in their internal as well as external environment are known asA. succulentB. non-succulentC. ephemeralsD. None of these |
| Answer» Correct Answer - B | |
| 631. |
Chaperonins and prolines are present inA. CeratophyllumB. OpuntiaC. CalotropisD. Solanum |
| Answer» Correct Answer - C | |
| 632. |
Individuals of a species which occur in a particular area constituteA. faunaB. floraC. populationD. Both (a) and (b) |
| Answer» Correct Answer - C | |
| 633. |
Permanent outward movement of individuals is known asA. natalityB. mortalityC. emigrationD. migration |
| Answer» Correct Answer - C | |
| 634. |
Psammophytes are plants growing on soilA. AlluvialB. SandyC. AlkalineD. Acidic |
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Answer» Correct Answer - B Psammophytes are plants growing on sandy soil. |
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| 635. |
Total root parasite isA. RafflesiaB. CassythaC. ViscumD. Loranthus |
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Answer» Correct Answer - A Total roots parasite is rafflesia. |
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| 636. |
Which of the following is a partial root parasite ?A. Sandal woodB. MistletoeC. OrobancheD. Ganoderma |
| Answer» Correct Answer - C | |
| 637. |
The organism found in boiling thermal springs areA. FungiB. ProtistsC. ArchaebacteriaD. Actinomycetes |
| Answer» Correct Answer - C | |
| 638. |
Formation of tropical forests needs mean annual temperature and mean annual precipitation as:A. `18-25^(@)C and 150-400` cmB. `5-15^(@)C and 50-100` cmC. `30-50^(@)C and 100-150` cmD. `5-15^(@)C and 100-200` cm |
| Answer» Correct Answer - A | |
| 639. |
Formation of tropical forests needs mean annual temperature and mean annual precipitation asA. `18 - 25^(@)C and 150 - 400 cm`B. `5 - 15^(@)C and 50 - 100 cm`C. `30 - 50^(@)C and 100 - 150 cm`D. `5 - 15^(@)C and 100 - 200 cm` |
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Answer» Correct Answer - A Formation of that tropical forest need annual temperature `18 - 25^(@)C` and annual rainfall (precipitation) above 140 cm, usually between 150 - 400 cm and reach upto 1000 cm/year. Tropical forest (tropical rain or evergreen forest mainly occurs in equatorial or subequatorial region like Amazon, Central America and Orinco and Congo river basins of South America and Africa respectively. The other options are incorrect. |
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| 640. |
A: Estuary constitutes one of the most productive ecosystem. R: It represents transition zone between two populations of a species.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertionB. It both Assertion & Reason are true but the reason is not the correct explanation of the assertionC. If Assertion is true statement but Reason is falseD. If both Assertion and Reason are false statements |
| Answer» Correct Answer - C | |
| 641. |
Choose odd one w.r.t. features of tropical rain forestA. PermafrostB. Drip tipsC. EpiphytesD. Woody climber |
| Answer» Correct Answer - A | |
| 642. |
Mean annual temperature of tropical zone isA. less `10^(@)C`B. `16^(@)C`C. more than `24^(@)C`D. `30^(@)C` |
| Answer» Correct Answer - C | |
| 643. |
Soil porosity is the maximum inA. Sandy soilB. Clay soilC. SiltD. Loam |
| Answer» Correct Answer - B | |
| 644. |
Eluviation zone is also known asA. `A_(1)` regionB. `A_(0)` regionC. `A_(oo)` regionD. `A_(2)` region |
| Answer» Correct Answer - D | |
| 645. |
A: The soil of tropical rain forest has low base content. R: It represents transition zone between two populations of a species.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertionB. It both Assertion & Reason are true but the reason is not the correct explanation of the assertionC. If Assertion is true statement but Reason is falseD. If both Assertion and Reason are false statements |
| Answer» Correct Answer - C | |
| 646. |
A good soil is that whichA. Has very high water holding capacityB. Has moderate water holding capacityC. Has very low water holding capacityD. Allows water to pass through it quickly |
| Answer» Correct Answer - B | |
| 647. |
A good soil is that whichA. Allows little water to enter in itB. Allows extra water to percolate slowlyC. Holds water enering itD. Allows water to pass through it quickly |
| Answer» Correct Answer - B | |
| 648. |
The turnover in a lake in spring and autumn results inA. Free mixing of `O_(2)` and nutrientsB. Algal bloomC. Temperature inversionD. Both (1) and (2) |
| Answer» Correct Answer - D | |
| 649. |
In soil profile, the zone of eluviation isA. O-zoneB. A-zoneC. B-zoneD. C-zone |
| Answer» Correct Answer - B | |
| 650. |
Permanent wilting percentage (PWP) is the highest inA. SiltB. Sandy soilC. LoamD. Clay soil |
| Answer» Correct Answer - B | |