Question 1 :
Select the incorrect match <br>A.Sedimentary nutrient cycle – Nitrogen cycle <br>B.Pioneer species – Lichens <br>C.Secondary succession - burned forests <br>D.Pyramid of biomass in sea – upright
Question 2 :
The transfer of energy from organism to organism in a natural community establishes
Question 3 : <p>I. Species level II. Population level</p><p>III. Individual level IV. Community level</p><p>Out of the levels given at a which level selection operates</p>
Question 5 :
What is the decreasing order of number of animal species, as far as India is concerned?
Question 7 :
The evolutionary reason a given organism interacts with another organism is to
Question 9 : <p>The national forest policy of India has recommended …A… % forest cover for the plains and …B… % for the hills</p>
Question 10 :
A species facing extremely high risk of extinction in the immediate future is called
Question 12 :
Wildlife is continuously decreasing. What is the main reason of this?
Question 13 : <p>Prolonged liberal irrigation of agricultural fields is likely to create the problem of</p>
Question 14 : <p>When the value of ‘<img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ed0aa398ccf4a7e964346c7"/>’ is significantly low as compared to other. It is better known by</p>
Question 16 : <p>What did Chernobyl, Three Mile Island, the Love Canal and Bhopal, India all have in common?</p>
Question 17 : <p>The alien species introduced into lake Victoria that was responsible for the extinction of cichlid fishes is</p>
Question 18 :
When a species goes extinct in one area, it is often desirable to reintroduce the species from other populations. A major problem with this approach is that
Question 23 : <p>An ecosystem, which can be easily damaged but can recover after some time if damaging effect stops, will be having</p>
Question 25 : Match the following
<table>
<tr><th>Population</th><th> Example</th></tr>
<tr><td> A.Predation </td><td>I.Cuscuta and hedge plants</td></tr> <tr><td> B.Commensalism </td><td>II.Balanus and Chathamalus </td></tr>
<tr><td> C.Parasitism</td><td> III.Cactus and moth</td></tr>
<tr><td> D.Competition</td><td> IV.Orchid and mango</td></tr>
</table>
Question 26 : <p>High level radioactive waste can be managed in which of the following ways?</p>
Question 29 : <p>If a pond food chain gets polluted by DDT, the tissue concentration of DDT would be highest in</p>
Question 32 :
Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere?
Question 33 :
An ecological pyramid of biomass is the representation of the ecosystem’s
Question 36 :
When the value of ‘r’ is significantly low as compared to another species, it is better known by
Question 37 : Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5d846fa4c2d54b62892ae78e" /><br>
Question 38 : The diagram below shows a particular food web. Each letter represents a different species. Arrows indicate the flow of energy and materials. Which of the following would probably have the greatest total biomass?<br> <img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/NEET/5efb96f4c1445a186e45dbd4' class="uploaded-image" />
Question 39 :
Which of the following was not usually observed by G.F. Gause in his studies on interspecific competition?
Question 41 : <p>Regarding 10% law</p><p>I. This law was put forward by Lindeman in 1942</p><p>II. According to this law, during the transfer of food energy from one tropical level to the other, only about 10% is stored at higher trophic level and the remaining 90% is lost in respiration, decomposition and waste in the form of heat</p><p>Which of the statements given above is/are correct?</p>
Question 42 : <p>As estimated by Robert May, what is total number of species present on earth?</p>
Question 46 :
The number of births per thousand people in the population is expressed as:
Question 47 :
Which of the following statements describe natural extinction? <br>A. Extinctions abetted by human activities<br>B. Slow replacement of existing species.<br>C. Also known abetted by human activities.<br>D. A small population is most likely to be extinct.
Question 49 : <p>Which kind of pyramid is represented by the given diagram</p><p><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ed09a6c22391749b43d0dc0"/></p>
Question 50 :
In a life table, the number of individuals alive at the beginning of the 1-year age interval is 800. During this interval 200 individuals die. The death rate for this interval is -
Question 52 :
Which one of the following is not one of the three aspects studied in biogeochemical cycling?
Question 54 :
A behavioural strategy of adaptation is called echolocation is found in -
Question 55 :
Which one of the following scientists is famous for his contributions in ecological researches?
Question 56 :
Predators are important for a natural ecosystems because they - <br>I. Keep prey population under control<br>II. Helps in maintaining species diversity<br>III. Are used in biological control method.<br>IV. They reduced intensity of competition among completing prey species
Question 57 :
Which of the following is the most ecologically relevant environmental factor?
Question 58 :
Assuming that the energy transfer efficiency between trophic levels is 10%, how much grain would be required to produce 70 kg of human biomass if the grain is eaten by cows and the cows are eaten by humans?
Question 59 : The given pyramid shows the relative biomass of zooplankton and phytoplanton in a marine ecosystem. <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/NEET/5e6ca7d3ffcf8f526581c576' height='64' width='133' ><br>The biomass of the zooplanktons is higher than that of the phytoplanktons because -
Question 62 : <p> <font face="Cambria Math, serif">The national forest policy of India has recommended …A… % forest cover for the plains and …B… % for the hills</font></p>
Question 63 :
The world summit on sustainable development held in 2002 in Johannesburg, South Africa, how many countries pledged their commitment to achieve by 2010
Question 64 :
What is the annual net primary productivity of whole biosphere ?
Question 66 : <p> <font face="Cambria Math, serif">About 1000 different varieties of …… has been estimated in India</font></p>
Question 67 : <p> <font face="Cambria Math, serif">Wildlife conservation aims at</font></p> <p> <font face="Cambria Math, serif">I. maintaining the ecological process</font></p> <p> <font face="Cambria Math, serif">II. to enrich the wildlife diversity with exotic species</font></p> <p> <font face="Cambria Math, serif">III. preventing migration of the species</font></p> <p> <font face="Cambria Math, serif">IV. maintaining the diversity of life</font></p> <p><font face="Cambria Math, serif">Select the correct answer using the codes given below</font></p>
Question 70 : <p> <font face="Cambria Math, serif">How many bio-geographical regions are present in India?</font></p>
Question 73 :
Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?
Question 74 : <p> <font face="Cambria Math, serif">Which of the following is the correct estimation about the numbers of national parks, biosphere and the wildlife sanctuaries of India</font></p>
Question 75 : <p> <font face="Cambria Math, serif">In which part of the biosphere reserves, human settlement is permissible?</font></p>
Question 76 : <p> <font face="Cambria Math, serif">The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured in terms of</font></p>
Question 77 : <p> <font face="Cambria Math, serif">For the best ecological balance, land mass of a country in plains covered with forests</font></p>
Question 79 : <p align="justify"> <font face="Cambria Math, serif">A country with a high rate of population growth took measures to reduce it. The figure below shows age sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them.</font></p> <p align="justify"> <img style='object-fit:contain' align="bottom" height="182" src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ff7fefbf055a67f16a22e25" width="190"/> </p> <p align="justify"> <img style='object-fit:contain' align="bottom" height="183" src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ff7fefb60dc7a02e7f5cd5d" width="204"/> </p> </td> </tr> <tr> <td width="4%"><p> <br/> <br/> </p> </td> <td width="2%"><p> <font face="Cambria, serif">a)</font></p>
Question 80 : <p align="justify"> <font face="Cambria Math, serif">The niche of a population is defined as</font></p>
Question 81 : <p> <font face="Cambria Math, serif">Consider the following statements</font></p> <p> <font face="Cambria Math, serif">I. Noise causes psychological disorder in humans</font></p> <p> <font face="Cambria Math, serif">II. Noise causes physiological disorder in humans</font></p> <p> <font face="Cambria Math, serif">III. Noise measurable unit is dB but some times it is measured in Dobson unit</font></p> <p> <font face="Cambria Math, serif">IV. 150 dB is tolerate for human</font></p> <p><font face="Cambria Math, serif">Which of the above statements are true?</font></p>
Question 82 : <p> <font face="Cambria Math, serif">Which of the following statement is correct about DDT?</font></p>
Question 83 :
Which one of the following is a major constituent of biological membranes, nucleic acids and cellular energy transfer systems?
Question 86 : Examine the following food web. Organism is a (n)<br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/NEET/5e6ca799ffcf8f526581c527' height='384' width='321' >
Question 87 : The given diagram shows electrostatic precipitator. Identify A, B and C.<br /><img style='object-fit:contain' src="https://s3.ap-south-1.amazonaws.com/me-p/5f854b9f16d7e6154e45e6de.jpg" />
Question 88 : <p align="justify"> <font face="Cambria Math, serif"><i>Viscum album </i>grows on trees. This is an example of </font> </p> </td> </tr> <tr> <td width="4%"><p> <br/> <br/> </p> </td> <td width="2%"><p> <font face="Cambria, serif">a)</font></p>
Question 89 : <p> <font face="Cambria Math, serif">The rate of which organic compounds are formed in a green plant or in a population of green plants per unit time and area is known as the</font></p>
Question 90 :
The particulate matter that causes greatest harm to human health have following diameter
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