MCQOPTIONS
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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 8301. |
Cells of squamous epithelium are [CPMT 1973; DPMT 1979; MP PMT 1994] |
| A. | Tall with elongated nuclei |
| B. | Cube like |
| C. | Flat and tile like |
| D. | Columner or cuboidal in shape |
| Answer» D. Columner or cuboidal in shape | |
| 8302. |
Schneiderian membrane is found in [BHU 1987] |
| A. | Nasal passage |
| B. | Trachea |
| C. | Bowman's capsule |
| D. | Loop of Henle |
| Answer» B. Trachea | |
| 8303. |
Reproductive cells (germinal epithelium) are made up of which of the following epithelial tissue [CPMT 1976] |
| A. | Cuboidal |
| B. | Columnar |
| C. | Squamous |
| D. | Sensory |
| Answer» B. Columnar | |
| 8304. |
An association of two species where both the partners derive mutual benefit from each other is [HP PMT 2005] |
| A. | Parasitism |
| B. | Symbiosis |
| C. | Commensalism |
| D. | Predation |
| Answer» C. Commensalism | |
| 8305. |
Which is not a part of atmosphere [MP PMT 2005] |
| A. | Light |
| B. | Temperature |
| C. | Edaphic factor |
| D. | Precipitation |
| Answer» D. Precipitation | |
| 8306. |
The main aim of 'Earth Summit' organised at Brazil was |
| A. | To think over ozone layer depletion in stratosphere |
| B. | To increase oxygen in atmosphere |
| C. | To encourage agriculture |
| D. | To use solar energy |
| Answer» B. To increase oxygen in atmosphere | |
| 8307. |
Acclimatization is [MHCET 2004] |
| A. | Pure-line breeding |
| B. | Pure-line selection |
| C. | Introduction |
| D. | Adaptation to new environment |
| Answer» E. | |
| 8308. |
The instrument which measures wind velocity is [MP PMT 2004] |
| A. | Lactometer |
| B. | Anemometer |
| C. | Hydrometer |
| D. | Barometer |
| Answer» C. Hydrometer | |
| 8309. |
In which one of the following pairs is the specific characteristic of a soil not correctly matched [CBSE PMT 2004] |
| A. | Chernozems - Richest soil in the world |
| B. | Black soil - Rich in calcium carbonate |
| C. | Laterite - Contains aluminium compound |
| D. | Terra rossa - Most suitable for roses |
| Answer» E. | |
| 8310. |
In commensalism [MP PMT 2004] |
| A. | Both partners are benefitted |
| B. | Both partners are harmed |
| C. | Weaker is benefitted while stronger is unharmed |
| D. | None of these |
| Answer» D. None of these | |
| 8311. |
Humus is important for plant growth because [BVP 2003] |
| A. | It is partially decomposed |
| B. | It is derived from leaves |
| C. | It is rich in nutrients and increases the water holding capacity of soil |
| D. | It is made up of dead organic matter |
| Answer» D. It is made up of dead organic matter | |
| 8312. |
Which one of the following is a right matching pair of certain organism(s) and the kind of association [AIIMS 2003] |
| A. | Shark and sucker fish-Amensalism |
| B. | Algae and fungi in lichens-Mutualism |
| C. | Orchids growing on trees-Parasitism |
| D. | Cuscuta (dodder) growing in other flowering plants-epiphytism |
| Answer» C. Orchids growing on trees-Parasitism | |
| 8313. |
Humus is found in [CPMT 2003] |
| A. | Top portion of soil |
| B. | Middle portion of soil |
| C. | Deep portion of soil |
| D. | None of these |
| Answer» B. Middle portion of soil | |
| 8314. |
The average concentration ofin the atmosphere is |
| A. | 10 ppm |
| B. | 100 ppm |
| C. | 300 ppm |
| D. | 1000 ppm |
| Answer» D. 1000 ppm | |
| 8315. |
Surface water of lake enrich in having [AFMC 2003] |
| A. | Organic substance |
| B. | Minerals |
| C. | Inorganic substance |
| D. | Pollutants |
| Answer» B. Minerals | |
| 8316. |
Ozone hole means [AFMC 2001] |
| A. | Hole in the stratosphere |
| B. | Same concentration of ozone |
| C. | Decrease in concentration of ozone |
| D. | Increase in the concentration of ozone |
| Answer» D. Increase in the concentration of ozone | |
| 8317. |
Clay soil is obtained [Pb. PMT 2000] |
| A. | In desert |
| B. | Around ponds |
| C. | On seashore |
| D. | On rocks |
| Answer» C. On seashore | |
| 8318. |
A bird enters the mouth of crocodile and feed on parasitic leeches. The bird gets food and crocodile gets ribs of blood sucking leeches. Both the partners can live independently. Such an association is [BHU 2001] |
| A. | Mutualism |
| B. | Amensalism |
| C. | Commensalism |
| D. | Protocooperation |
| Answer» E. | |
| 8319. |
Soil is a mixture of [Pb. PMT 2000] |
| A. | Sand and clay |
| B. | Sand and humus |
| C. | Clay and humus |
| D. | Sand, clay and humus |
| Answer» E. | |
| 8320. |
Territoriality occurs as a result of [AFMC 1999; BVP 2000; Pb. PMT 2004] |
| A. | Parasitism |
| B. | Predation |
| C. | Co-operation |
| D. | Competition |
| Answer» E. | |
| 8321. |
When the organisms live together in such a manner that one organism is benifitted, while other has no effects, it is called [CPMT 1998] |
| A. | Commensalism |
| B. | Parasitism |
| C. | Mutualism |
| D. | All of the above |
| Answer» B. Parasitism | |
| 8322. |
Which of the following statements is incorrect [KCET 1998] |
| A. | Lichen, an association of fungus and algae is an example of Mutualism |
| B. | Those Epiphytes which use other plants for support only and not for water or food supply are examples of Commensation |
| C. | Sea-anemone on hermit-crab is an example of protocooperation |
| D. | Mutualism, protocooperation, commensalism cannot be included under Symbiosis |
| Answer» E. | |
| 8323. |
What will be the environmental consequence of 25% increase oflevel in our atmosphere |
| A. | Direct pollution |
| B. | Death of all plants |
| C. | Death of all animals |
| D. | Green-house effect |
| Answer» C. Death of all animals | |
| 8324. |
Stopage of reproduction in an organism by creating hurdle in its biology or physiology or its distruction by use of another organism is known as [CBSE PMT 1996] |
| A. | Predation |
| B. | Competition |
| C. | Biological control |
| D. | Physiological control |
| Answer» D. Physiological control | |
| 8325. |
Crop rotation is helpful because [CPMT 1995] |
| A. | It gives more nitrates in the soil |
| B. | It gives more sulphates in the soil |
| C. | It gives more nitrogen in the soil |
| D. | It gives more phosphorus in the soil |
| Answer» B. It gives more sulphates in the soil | |
| 8326. |
Which is the main causative factor of desertification [CBSE PMT 1995] |
| A. | Developmental activities |
| B. | Tourism |
| C. | Overgrazing |
| D. | Irrigated agriculture |
| Answer» D. Irrigated agriculture | |
| 8327. |
Which one of the following factors is biotic [CPMT 1993] |
| A. | Photoperiod |
| B. | content to the soil |
| C. | Texture and porosity of soil |
| D. | Rainfall |
| Answer» C. Texture and porosity of soil | |
| 8328. |
Mycorrhiza, a relationship between fungi and roots of higher plants is [CPMT 1993] |
| A. | Parasitic relationship |
| B. | Saprophytic relationship |
| C. | Symbiotic relationship |
| D. | Epiphytic relationship |
| Answer» D. Epiphytic relationship | |
| 8329. |
The best source of energy in the environment is [DPMT 1992] |
| A. | Water |
| B. | Soil |
| C. | Trees |
| D. | Ponds |
| Answer» D. Ponds | |
| 8330. |
If the strong partner is benefitted and the weak partner is damaged, it is known as [NCERT 1980] |
| A. | Amensalism |
| B. | Symbiosis |
| C. | Predation |
| D. | Allotrophy |
| Answer» D. Allotrophy | |
| 8331. |
Which of the following is not a biotic component [MP PMT 1990] |
| A. | Phytoplankton |
| B. | Herbivores |
| C. | Light |
| D. | Bacteria |
| Answer» D. Bacteria | |
| 8332. |
Biotic factors are [CPMT 1981] |
| A. | Chemical factors of soil which affect life |
| B. | Physical factors of soil which affect life |
| C. | All living organisms which influence other organisms |
| D. | Factors of atmosphere which affect life |
| Answer» D. Factors of atmosphere which affect life | |
| 8333. |
When one organism is benefitted without affecting the others is called [CPMT 1977, 83, 2000; DPMT 1984, 92] |
| A. | Parasitism |
| B. | Commensalism |
| C. | Saprophytism |
| D. | Symbiosis |
| Answer» C. Saprophytism | |
| 8334. |
Soil erosion is greater when [Pune CET 1998] |
| A. | There is no rain |
| B. | The rainfall is low |
| C. | Winds do not blow |
| D. | The rainfall is received in heavy downpour |
| Answer» E. | |
| 8335. |
Insectivorous plants grow on [CPMT 1994] |
| A. | Deficient soil |
| B. | Deficient soil |
| C. | Deficient soil |
| D. | Deficient soil |
| Answer» B. Deficient soil | |
| 8336. |
Salinity of the soil is often caused due to [CPMT 1989] |
| A. | Accumulation of soluble minerals near or in the surface in arid region |
| B. | Excessive addition of water |
| C. | Rapid evaporation of surface water |
| D. | Excessive leaching |
| Answer» B. Excessive addition of water | |
| 8337. |
Soil conservation can be best achieved by having [CPMT 1988] |
| A. | Wind screens |
| B. | Good plant covers |
| C. | Restricted human activity |
| D. | Low rainfall |
| Answer» C. Restricted human activity | |
| 8338. |
Mulching helps in [BHU 1983] |
| A. | Soil fertility |
| B. | Moisture conservation |
| C. | Improvement of soil structure |
| D. | Soil sterility |
| Answer» C. Improvement of soil structure | |
| 8339. |
Sheet erosion is caused by [CPMT 1990] |
| A. | Fast running rivers |
| B. | Wind |
| C. | Heavy rains |
| D. | Glaciers |
| Answer» D. Glaciers | |
| 8340. |
Deep black soil is considered to be highly productive due to high proportion of [CBSE PMT 1991] |
| A. | Silt and earthworm |
| B. | Clay and humus |
| C. | Gravel and |
| D. | Sand and |
| Answer» C. Gravel and | |
| 8341. |
Which of the following ecological factor exerts a direct effect |
| A. | pH |
| B. | Topography |
| C. | Mineral elements |
| D. | Humidity |
| Answer» E. | |
| 8342. |
Loss of upper fertile layer of soil is known as [MP PMT 1988] |
| A. | Pedogenesis |
| B. | Pedosolization |
| C. | Soil erosion |
| D. | None of the above |
| Answer» D. None of the above | |
| 8343. |
Solubility and availability of plant nutrients are more related to [EAMCET 1981; BHU 1984] |
| A. | Soil pH |
| B. | Soil porosity |
| C. | Soil temperature |
| D. | Soil colour |
| Answer» C. Soil temperature | |
| 8344. |
The pH of a fertile soil is usually around [CPMT 1977, 83, 87; MP PMT 1989; CBSE PMT 2001] |
| A. | 44257 |
| B. | 44383 |
| C. | 44477 |
| D. | 44541 |
| Answer» C. 44477 | |
| 8345. |
The best soil for healthy and vigorous growth of the plant is [DPMT 1974, 83; BHU 1991; 1995] |
| A. | Clay |
| B. | Loam |
| C. | Sandy soil |
| D. | None of the above |
| Answer» C. Sandy soil | |
| 8346. |
Deforestation has an alarming effect on [DPMT 1984, 86; AIIMS 2001] |
| A. | Increase in grazing area |
| B. | Sunlight |
| C. | Weed control |
| D. | Soil erosion or desertification of habitat |
| Answer» E. | |
| 8347. |
An area of soil is thoroughly wetted and allowed to drain until capillary movement of water stopped. The water contents of the soil will give an estimate of its [AIIMS 1980; MP PMT 1990; AFMC 1987; CPMT 1992] |
| A. | Capillary water |
| B. | Storage water |
| C. | Field capacity |
| D. | Gravitational water |
| Answer» D. Gravitational water | |
| 8348. |
Edaphic factors are related to [CPMT 1976, 2000; KCET 1994] |
| A. | Soil |
| B. | Animal |
| C. | Man |
| D. | Temperature |
| Answer» B. Animal | |
| 8349. |
The resource which regulates the flow of energy in desert ecosystem is the availability of |
| A. | Light |
| B. | Water |
| C. | Minerals |
| D. | Heat |
| Answer» C. Minerals | |
| 8350. |
Edaphology is the relationship between [AIIMS 1999] |
| A. | Plant and biosphere |
| B. | Animal and ecosystem |
| C. | Soil and living organisms |
| D. | Soil and biosphere |
| Answer» D. Soil and biosphere | |