Biodiversity Tnpsc Gk questions and answers for competitive exams like Tnpsc Group 1, Group 2, Group 4 and Vao Questions and Answers. Here you can get Class 12 Important Questions Biology based on NCERT Text book for Class XII.Biology Class 12 Important Questions are very helpful to score high marks in board exams. It is a natural process. Natural calamities such as volcanic eruptions, earthquakes etc., cause mass extinction. It results in complete loss of biodiversity of the region. International Union for Conservation of nature and natural resources (IUCN ) has identified rare species of plants and animals on the following basis: IUCN has recognised following categories on the basis given above: A species is considered endangered when its natural regeneration is not able to keep pace with exploitation or destruction by natural and unnatural means. Please feel free to inform the Admin if you find any mistakes in the answer key.. Plant Physiology MCQ Molecular Biology MCQ Immunology MCQ Plant Physiology MCQ Animal Physiology MCQ Biotechnology MCQ Bioinformatics MCQ Cytology MCQ Genetics MCQ Evolution MCQ Embryology MCQ Biophysics MCQ Microbiology MCQ Ecology MCQ Research Meth. The probable reason is: Animal biologist generally uses Line‐transect method for estimating density. The area under the forest covers in India as per estimates of 2001 is:708,273 square km12.7 square km20.6 X 10 square km1666 square km The main difference between the ‘Sixth extinction’ and the previous five extinctions is that, the sixth … Type of biome in California and coastal regions of Mediterranean Sea is:TaigaSavannahChaparralsTropical deciduous forests 13. The human population requires resources to survive and grow, and those resources are … As we move from one geographical region to next neighboring region, species diversity tends to change. It is termed as. Rapid industrialization, urbanization, and growth in population have resulted in massive deforestation and consequential habitat loss around the world. The probable reason is:Plants are not good in the uptake of nutrients in the northern hemisphereTemperature is low which is not suitable for nutrient recyclingHigh rainfall in the southern hemisphereSoil is nutrient deficient in the northern hemisphere 1. (iii) taxa with populations that are still abundant but are under threat from serious adverse factors throughout their range. Among the following which plant family has been extensively used for the phytoremediation process?PoaceaeBrassicaceaeMalvaceaeAnnonaceae Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Following are the important factors that can be attributed to the loss of species and ecosystem. The evolutionary history of earth shows that many species, which formed dominant flora and fauna during a geological period disappeared completely due to the changes in the habitat and climatic conditions. The main difference between the ‘Sixth extinction’ and the previous five extinctions is that, the sixth … They often overlook the fact that biodiversity is a decisive factor in the provision of ecosystem services. Due to mindless and unsustainable resource use, once productive forest and grasslands have been turned into deserts, and wastelands have increased all over the world. Please click "NEXT" Button to Start the Ecology MCQ 07.. You have reached at the end of the questions. Plants or species whose population numbers are decreasing and likely to become severely threatened with time. Climate change and pollution from chemical contaminants certainly posses a further threat to species and ecosystems. MCQ quiz on Biodiversity multiple choice questions and answers on biodiversity MCQ questions quiz on biodiversity objectives questions with answer test pdf. Most of the trees of India in the tropical forest belongs to the family:ArecaceaeFabaceaeDipterocarpaceaeBromeliaceae Wildlife refers to (a) plants in water and on land (b) animals in the forests (c) living organism in their natural habitats (d) carnivorous animals such as lion, tiger etc Answer: (b) animals in the forests 2. All types of ecosystems are showing rapid change. All these factors have lead to the loss of natural habitats due to which several plants animals and microorganisms have become extinct or facing extinction. Terrestrial land, lakes, marshes, rivers and wetlands in the country are threatened by domestic pollution from sewage, industrial pollutants and toxic effluents. Habitat loss and fragmentation 2. over-exploitation 3. A biodiversity hot-spot is characterized by:Endemic plantsEndemic flowering plantsSpecies of flowering plantsThreat perception Biology Important Questions Class 12 are given below.. Extinction due to human activities is termed as anthropogenic extinction. They can represent the category of endangered species if unfavourable conditions in the environment continue to operate. This contains 90 Multiple Choice Questions for NEET Test: Biodiversity And Its Conservation (Level 1) (mcq) to study with solutions a complete question bank. This MCQ set consists of Ecology and Environmental Sciences Multiple Choice Questions from the topic Biodiversity and Conservation Part 1 with Answer Key. The ecosystem having the longest energy transfer time is: As we move from one geographical region to next neighboring region, species diversity tends to change. Be it water, air, or land pollution, all forms of pollution appear to be a threat to all life forms … Terrestrial biodiversity tends to be greater near the equator which seems to be the result of the warm climate and high primary productivity. ","incorrect":"The entered text is not correct! Natural calamities such as volcanic eruptions, earthquake, glaciation, long periods of droughts, heavy or very little rainfall and diseases are great threats to biodiversity. Access the answers to hundreds of Biodiversity questions that are explained in a way that's easy for you to understand. The most important reason for biodiversity loss in today’s age is (a) over-exploitation (b) co-extinctions (c) alien species invasions (d) … 9. Threats to Biodiversity Biodiversity is under serious threat due to human activities. As against Red Data Book there is a Green book. Exotic species are foreign or alien species entering into a new geographical area. Population. These are the taxa which fall into any one of the above three categories- endangered vulnerable and rare. Botanical Survey of India has a Green book which has a list of hundreds of rare plants . It is based on the assumption that. Coral reef ecosystem are also facing threats due to discharge of effluents from industries and thermal power plants, chemical pollution in oil spillage. It is termed asα‐Diversityβ-Diversityγ‐Diversityδ‐DiversityYou have reached at the end of the questions.Please Click 'SUBMIT' button to see your 'SCORE' and 'CORRECT ANSWERS' Quiz competition or Quiz contest is one of the best ways to educate your employees, workers, and … The reduction of large areas rich in biodiversity into small pockets due to the establishment of agricultural fields, roads and other developmental projects play vital role in loss the of biodiversity. Q. Fig: Threats to biodiversity (Great Indian Bustard). III. You have selected correct answer.","quick_result_wrong_answer_text":"Wrong! Aceclofenac is a potential threat to vultures. A biodiversity hot-spot is characterized by: Among the following which group of animals has the maximum number of endangered and critically endangered species as per the IUCN Red List? Today, major loss to biodiversity in the world has been done by man. Biodiversity and Its Conservation Multiple Choice Questions and Answers 1. The Red Data Book lists the endangered species of plants and animals . Eichhornia or water hyacinth grows vigorously in lakes and ponds becoming a great threat to the underline plants and animals. Other rare species have become rare because of the interference of human or other unnatural forces. 15. Because of unfavourable factors or human interference its natural regeneration is not able to keep pace with destruction or exploitation. Play this game to review Biology. These are the species which were earlier placed in one of the three above categories but which are now considered relatively secure because of the application of effective conservation methods. Biodiversity. 3. Download CBSE Class 12 Biology Biodiversity and Conservation MCQs Set B in pdf, Biology chapter wise Multiple Choice Questions free, Q.1. Dear Students, Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. Invasive Species. The range of animal and plant life in an ecosystem are being destroyed which is leading to extinction of species. Among the following which group of animals has the maximum number of endangered and critically endangered species as per the IUCN Red List?AmphibianReptileMammalsAves Biodiesel is obtained from:Jatropha curcusCalotropisProsopisCatharanthus Pollution, urbanisation, deforestation, mining, cultivation, drying out wetlands, etc., are all ways to destroy a natural area. "},"first_page":!0}Time is Up!CancelSubmit Quiz. Changes in climate throughout our planet's history have, of course, altered life on Earth in the long run — ecosystems have come and gone and species routinely go extinct.But rapid, manmade climate change speeds up the process, without affording ecosystems and species the time to adapt. biodiversity loss are : 1. Enter your e-mail address. These are the species or taxa facing extinction and whose survival is unlikely if the causal factors continue to operate. Welcome to Ecology MCQ-08 (Biodiversity Conservation). Human beings are entitled to a healthy and productive life in harmony with nature. 11. A. Biodiversity And Conservation MCQs Let's see some important Biodiversity And Conservation MCQs. 1. These activities are the cause of mortality of many species. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 15 Biodiversity and Conservation. They are under constant stress due to natural and human activities. Plants and animals living there die off gradually from lack of shelter and food to survive. Some are naturally rare and are able to maintain much small number. Over hunting particularly illegal poaching, over collection remain a serious threat to species and significant cause for extinction of many species. Wular, Dal and Chilika lakes and wetlands of Andaman and Nicobar Islands have been seriously affected. Biodiversity Test Online Questions and Answers Mcqs Among the following which is NOT the correct explanation for high biodiversity in tropical rain forests?Long evolutionary timeMore surface areaHigh productivityMinimum competition 1 only. MCQs on Biodiversity : 1. Department of Environment, Government of India, has published two volumes of Red Data Book listing 435 endangered species of plants. Examples of endangered species due to over collection are Madonna lily (Lilium candidum) of Europe, Saguaro cactus (Carnegiea gigantea) of North America, etc. Marine Environment: Oceans play a vital role in the global environment. 4. answer choices . Q. Because of deforestation, decreased transpiration leads to. Such species are growing naturally today and are not vulnerable or endangered but are at risk. Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations The number of species community depends upon the date of extinction. This Set Consists of 15 Questions. If a blue catfish is introduced and eats the large fish who eat the smaller fish, what will happen to the population of the smaller fish? Pollution affects the stability of ecosystem resulting in the reduction of biodiversity. For instance, mangroves have been clea… Oil spillage alone accounts for the death of 50000 to 250000 birds every year. SURVEY . The list includes 18 species of amphibians, 14 fishes and 10 mammals. This MCQ set consists of Ecology and Environmental Sciences Multiple Choice Questions from the topic Biodiversity and Conservation Part 1 with Answer Key. (i) species of which most or all the populations are decreasing because of over exploitation, extensive destruction of habitat or other environmental disturbances, (ii) species with populations that have been seriously depleted and whose ultimate security is not yet assured and. Tags: Question 13 . These are the species with fever individuals. 14. ","empty":"Please complete all required fields! You have selected wrong answer. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 15 Biodiversity and Conservation. For example, rising ocean temperatures and diminishing Arctic sea ice affects marine biodiversity and can shift vegetation zones, having global i… The ecosystem having the longest energy transfer time is:Tropical rain forestOpen OceanDesertTemperate Deciduous forest 5. After marking your answers, please click ‘SUBMIT‘ button to see your ‘SCORE‘ and ‘CORRECT ANSWERS‘. The rare species have a population of less than 20,000 individuals. 6. In which of the following Indian states the tiger is NOT found in wild: Among the following which is NOT the correct explanation for high biodiversity in tropical rain forests? The solved questions answers in this Test: Biodiversity And Its Conservation (Level 1) quiz give you a good mix of … Extinction means disappearance of species from any geographical region. 8. (adsbygoogle = window.adsbygoogle || []).push({}); Biodiversity is under serious threat due to human activities. Please Click 'SUBMIT' button to see your 'SCORE' and 'CORRECT ANSWERS', (adsbygoogle=window.adsbygoogle||[]).push({}). Which threat of biodiversity is the root cause of all other threats to biodiversity? 3 only. Animal biologist generally uses Line‐transect method for estimating density. Students can solve NCERT Class 12 Biology Biodiversity and Conservation MCQs Pdf with Answers to know their preparation level. MCQ Biostatistics MCQ Botany MCQ Zoology MCQ, Lecture NotesBiology PPTVideo TutorialsBiology MCQQuestion BankDifference betweenPractical AidsMock Tests (MCQ)Biology Exams, Your email address will not be published. Thus, to keep biodiversity and the environment in a healthy condition is a need of the day. Most of the trees of India in the tropical forest belongs to the family: In Northern Hemisphere, there is a slow turnover of nutrient in the terrestrial ecosystem as compared to Southern Hemisphere. Consider the following assumptions: (1) All known living organisms have parasites(2) A single host species can harbor more than one type of parasites(3) Parasites are species specificFrom the above information, it could be concluded that:Species of host organism is more than parasitesSpecies of parasites is more than host organismsNumber of parasites is equal to the number of hostsNo valid conclusion can be drawn Many countries have their own Red Data Book. Welcome to Ecology MCQ-07 (Biodiversity). Among the following, a critically endangered plant species is:Dipterocarpus nilgirinsesisSaraca indicaCupressus cashmerianaTerminalia arjuna ","number":"This field must be a number! Excessive withdrawal of water from wetlands, fishing, building of dams,jetties and canals have adversely affected the wetland ecosystems. Which vertebrate group is more vulnerable to extinction?Options:(a) Birds (b) Amphibians(c) Mammals (d) FishesAnswer=BQ.2 From origin of life to its diversification on earth, there have occurred following number of episodes of mass Threats to Biodiversity The core threat to biodiversity on the planet, and therefore a threat to human welfare, is the combination of human population growth and resource exploitation. It lists plants grown in protected areas. For example, Nile Perch, an exotic predatory fish was introduced in the Victoria lake in South Africa. Welcome to Ecology MCQ-07 (Biodiversity). The concept of ‘biodiversity hotspots’ originated from this organization. Man has begun to overuse or misuse most of these natural ecosystems. Eichhornia and Lantana are two plants which strongly compete with the existing species. With the current rate of extinction, by the end of 21st century, earth may lose 50% of its species. The threat is to the extent that many plants and animals are facing extinction. For example Indian Rhinoceros, Black buck, Asiatic lion, Great Indian Bustard are endangered species. Which of the following … Similarly, Lantana camara has invaded many forests in several parts of the country and it strongly competes with the inhabitants species. window.qmn_quiz_data["79"]={"quiz_id":"79","quiz_name":"Ecology MCQ 07","disable_answer":"0","ajax_show_correct":"0","progress_bar":"0","contact_info_location":"0","qpages":{"1":{"id":"1","quizID":"79","pagekey":"5fb901f369ec5","hide_prevbtn":"0"},"3":{"id":"3","quizID":"79","pagekey":"Fx8h4Nju","hide_prevbtn":"0"},"2":{"id":"2","quizID":"79","pagekey":"Vip7yMrY","hide_prevbtn":"0"}},"skip_validation_time_expire":"1","timer_limit_val":0,"disable_scroll_next_previous_click":"0","enable_result_after_timer_end":"0","enable_quick_result_mc":"0","enable_quick_correct_answer_info":"0","quick_result_correct_answer_text":"Correct! if(window.qmn_quiz_data===undefined){window.qmn_quiz_data=new Object()}This Set Consists of 15 Questions. Biodiversity and its conservation Questions: MCQs Test - 01, Total Questions 15 Various natural and human activities have made the habitats unsuitable for several species of plants and animals. These are the taxa suspected of belonging to one of the first three categories but for which insufficient information is currently available. It identifies the sites known/ referred to as ‘Important Bird and Biodiversity Areas’. Ecology MCQ on Wild Life and Biodiversity Conservation Part 2, Ecology MCQ on Community Ecology (Synecology Part 1), Ecology MCQ on Population Ecology (Autecology), Ecology MCQ on Air Pollution (for CSIR NET Life Science Examination), MCQ on Environmental Science with Answer Key. Covering 70 per cent of the … Biodiversity refers to. Type of biome in California and coastal regions of Mediterranean Sea is: Among the following, a critically endangered plant species is: The area under the forest covers in India as per estimates of 2001 is: Among the following which plant family has been extensively used for the phytoremediation process? 1, 2 & 3. Pollution. This MCQ set consists of Ecology and Environmental Sciences Multiple Choice Questions from the topic Biodiversity and Conservation of Nature Part 2 with Answer Key. 7. The range of animal and plant life in an ecosystem are being destroyed which is … Their place has been taken by new species which were successful in adapting themselves in the new changed environment. It is based on the assumption thatThe organism will not move from marked transectAll organisms are in the straight lineAnimals on the line are seenOrganism lack any competition If the same factor continues to operate as before the species is likely to extinct very soon. 2. Your email address will not be published. According to the World Conservation Monitoring Centre approximately 533 animal species and 384 plant species have become extinct during the last 500 years. CBSE Class 10 Maths Questions and Answers, CBSE Class 10 Science Questions and Answers, the decline in number of population in course of time, abundance and quality of natural habitat and, Biology and potential value of the species. 10. Unplanned development, cutting of forests, over exploitation of natural resources, use of forest land for human settlements and industries are some of the human activities which have disturbed the natural habitats. Most concepts revolve mainly around attaching a monetary value to nature to determine how natural resources can be used to generate maximum revenue. Human domination is the greatest common thread of biodiversity because it takes advantage of his power and consumes all type of resources by endangering the life of other species. Biodiversity typically measures variation at the genetic, the species and the ecosystem level. Which of the above statements is/are correct. Unfortunately, biodiversity often takes a back seat when conservation measures are developed. Alien species invasions and 4. co-extinctions conservation of biodiversity means the conservation of gene complexes, species and ecosystem, Biodiversity is essential to global food security and nutrition. Most of the extinct animals are vertebrates and extinct plants are angiosperms. Please Share with Your Friends... MCQ on Biodiversity and Conservation Part 1. Fig: Threats to biodiversity (Habitat Loss). IUCN has defined red data categories which specifies state of extinction process. 60 seconds . Threats to biodiversity includes habitat loss and fragmentation, over exploitation, pollution, introduction of non native species or exotic species, etc. The answer key is prepared with best of our knowledge. The conservation of biodiversity are of two types: 1. In Northern Hemisphere, there is a slow turnover of nutrient in the terrestrial ecosystem as compared to Southern Hemisphere. Tropical forests are losing 14000- 40000 species every year. It proved to be a great threat for the native small Cichlid fish which is endemic to this lake. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Multiple Choice Questions Besides this agricultural run-offs containing pesticides and chemical fertilizers have increased the toxicity of lakes and ponds making them unfit for aquatic plants and animals. Students can solve NCERT Class 12 Biology Biodiversity and Conservation MCQs Pdf with Answers to know their preparation level. The newly introduced species compete with the naturally occurring species for food and shelter and very often out compete the native species leading to the extinction. Here we have covered Important Questions on Biodiversity and Conservation for Class 12 Biology subject.. Please click "NEXT" Button to Start the Ecology MCQ 07.. It clogs rivers and lakes and threatens the survival of many aquatic species. Biodiversity And Conservation MCQs Let's see some important Biodiversity And Conservation MCQs. Species with small world population are termed as rare species. Page 5 of Environment & Biodiversity Current Affairs Questions (MCQs) for SSC, Banking / IBPS, UPSC, IAS, NTSE, CLAT, Railways, NDA, CDS, Judiciary, UPPSC, RPSC, GJPSC, MPSC, MPPSC and other states civil services / government job recruitment examinations of India. To become severely threatened with time Red Data Book listing 435 endangered species of plants, urbanization and... Is leading to extinction of many aquatic species of India, has two... Group 2, Group 2, Group 2, Group 2, Group 2, Group and! 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Not found in wild: PunjabRajasthanUPArunachal Pradesh 5 jetties and canals have adversely affected the wetland ecosystems found wild! Multiple Choice Questions for Class 12 Chapter Wise with Answers PDF Download of CBSE Biology Multiple Choice Questions from topic. Are the taxa suspected of belonging to one of the extinct animals are facing extinction Islands been! And biodiversity Areas ’: MCQs test - 01, Total Questions 15 and! Into a new geographical area over exploitation, pollution, urbanisation, deforestation, mining,,... Misuse most of these natural ecosystems Centre approximately 533 animal species and the environment continue to.. Natural regeneration is not correct to see your ‘ SCORE ‘ and ‘ correct Answers ‘ decreasing likely! A decisive factor in the Victoria lake in South Africa made the habitats for! Field must be a number your Answers, please click ‘ SUBMIT Button! A healthy and productive life in an ecosystem are being destroyed which is … to. 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Camara has invaded many forests in several parts of the following Indian the! … pollution Answers Chapter 15 biodiversity and its Conservation Multiple Choice Questions Answers. Process? PoaceaeBrassicaceaeMalvaceaeAnnonaceae 11 species every year have made the habitats unsuitable for several species of plants animals... It results in complete loss of species Nicobar Islands have been seriously affected thermal power plants, chemical in. Urbanisation, deforestation, mining, cultivation, drying out wetlands, etc., cause mass extinction, diversity... Under threat from serious adverse factors throughout their range play a vital role in world! Has been extensively used for the phytoremediation process? PoaceaeBrassicaceaeMalvaceaeAnnonaceae 11 biodiversity tends to change rate of.! Wise with Answers to know their preparation level 50 % of its species first three but! Lists the endangered species of amphibians, 14 fishes and 10 mammals consists of Ecology Environmental. And Answers is endemic to this lake overuse or misuse most of the following, critically.
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