Ecosystem Class 12 MCQs Questions with Answers Question 1. Who introduced term Ecosystem? (a) they assume a simple food chain and do not consider food webs MCQ Questions On Ecosystem Chapter 14 Class 12 Question 6. (a) energy flow will be blocked. The consent submitted will only be used for data processing originating from this website. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Tertiary consumers, or carnivores that devour other carnivores, can also exist in ecosystems. How the tropical rain forest gets the name?a) Due to less rainb) Due to heavy rainc) Due to moderate raind) Due to no rain requiredAnswer: bClarification: The tropical rain forest named so because they receive a lot of rain. It also depends on the nature of the tree species whether they are evergreen forest, deciduous, xerophytes or mangroves. This is a characteristic feature of cropland ecosystem (a) Absence of weeds (b) Ecological succession (c) least genetic diversity Question 11. MCQ on Ecosystem. Home Energy Management Objective Questions 250+ TOP MCQs on Forest Ecosystems and Answers. If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because. Allow Necessary Cookies & Continue This is similar to the respiration mechanism of lungs in humans where it takes oxygen by eliminating carbon dioxide. Primary producer. Driving force in an ecosystem is (a) Plants (b) Producers (c) Solar energy (d) Biomass energy 17. The primary producers in a forest will be chlorophyll containing trees and plants. The consumers in a forest ecosystem are the ones that are not capable of producing their own food and therefore depend on the producers for their food and other resources. The rate at which food energy is assimilated at the trophic level of consumers is known as One of the major roles that forests play is that it provides us oxygen to breathe. These MCQs will help you to properly prepare for exams. Question: Choose incorrect option w.r.t. A) The tropical rain forests support a wide variety of plants and animals. B) We find animals such as ape, bird Toucan, red eyed frogs etc. Algae, including many types of seaweed, are the primary producers for most aquatic ecosystems. amount of living material present in different trophic levels at a given time. (b) Phytoplankton The Ecosystem To Productivity Test questions and answers have been prepared according to the Class 12 exam syllabus.The Ecosystem To Productivity Test MCQs are made for Class 12 2022 Exam. Study now. Trophic level in an ecosystem represents (a) oxygen level (b) water level (c) energy level (d) salt level Answer 7. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . The given figure best represents: Which is incorrect: A. all green plants and blue green algae are producers. A food chain comprising birds, green plants, fish and man. For example, small ponds to large oceans. In Arctic ecosystems, lichens are the primary producers. 95% B. An example of data being processed may be a unique identifier stored in a cookie. An agriculture/cropland is: (a) A biome (b) Natural ecosystem (c) An artificial ecosystem (d) A community of plants and animals only Answer: (c) An artificial ecosystem. D. Brown algae. Primary producers, also known as autotrophs, are the basis of every ecosystems food chain, including the tropical rain forest, since they generate their own food and give energy to other levels of the food chain via photosynthesis. (a) Herbs and shrubs Question 21. Science. 10. Explanation: In the give food web, the algae is the primary producer, microscopic animals consume algae and are the primary consumers and mussels are at the next trophic level and are the secondary consumers. These are usually found in regions where there is plenty of rainfall. A bald eagle is an illustration of a tertiary consumer you can observe close to the Everglades ' coastal mangrove islands. (b) Net primary productivity Food chains use only a small sampling of organisms. 2. 13. 14. Answer (1 of 2): The term "producer" in a typical ecosystem generally refers to biomass production in the food web. . Primary producers in an aquatic ecosystem are A. Phytoplankton B. Algae C. Higher plants D. All of the above (d) changes lead to a community that is in near equilibrium with the environment and is referred to as pioneer community, 6. (c) mineral movement will be blocked. B. green plants get their food from organic compounds. In an ecosystem, herbivores represent (a) producers (b) primary consumers (c) secondary consumers (d) decomposers Answer Our Environment Class 10 MCQ Question 6. There are around 3,000 species of bromeliads in the world, most of which are found in the tropical rainforests. The biomass of a forest is defined as the mass of living plants.a) Trueb) FalseAnswer: aClarification: The biomass of a forest is defined as the mass of living plants. Requested URL: byjus.com/biology/mcqs-on-ecology/, User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62. In temperate coniferous forests, shrubs and ground flora are insignificant. (a) grassland (b) scrub forest (c) xerophytic How erosion controlled by forest?a) By reducing in the sunlight penetrationb) By reducing the rainfalls force on the soils surfacec) By reducing the pressured) By increasing the rainfalls force on the soils surfaceAnswer: bClarification: Forest prevents erosion by reducing the rainfalls force on the soils surface. done clear. Forests are major contributors to the Earths ability to maintain its climate. A community of lifeforms concurrence with non-living components, interacting with each other is known as ecosystem and A.G. Tansley was the first who coined this term in 1953. Explanation: Primary producers are the organisms in an ecosystem that produce biomass from inorganic compounds (au totrophs). In these ecosystems, the sea otter can best be described as (A) top carnivore (B) keystone species (C) primary producer Engineering 2022 , FAQs Interview Questions. (c) Lichens (b) is greatest in freshwater ecosystems. The forest is rich in orchids and ferns. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Answer c. Plants. The correct answer is - 4. (b) establishment of a new biotic community is fast in its primary phase Your email address will not be published. 11. a) True b) False (c) 0.002 J Biotic type of forest depends on plants and animals form communities that are specific to each forest type. Hello students, our topic for the MCQ is 'Ecosystem'. You cannot access byjus.com. 20. Wiki User. Most species of tarantula have poisonous fangs for killing prey and to protect itself from other organisms. We are not permitting internet traffic to Byjus website from countries within European Union at this time. Gross primary production is A. Watersheds are defined as an area of land that contains a common set of streams and rivers that all join into a single larger body of water. McqMate.com is an educational platform, Which is developed BY STUDENTS, FOR STUDENTS, The only objective of our platform is to assist fellow students in preparing for exams and in their Studies throughout their Academic career. Primary producer of an ecosystem is A) Herbivores B) Carnivores C) Both a and b D) Green plants View Solution play_arrow question_answer 5) Which of the following are consumers of second order A) Herbivores B) Carnivores C) Top carnivores D) None of the above View Solution play_arrow question_answer 6) (d) Gravitational water. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. A forest ecosystem is an ecosystem of forests and resources. done clear. Thorn forest trees have long or fibrous roots to enable them to reach water at great depths. Trees, algae, and rattan are some of the forest producers in this region. Along with flowers, they also have attractive foliage, which can assume colors like red and golden. Primary producers are organisms in an ecosystem that produce biomass from inorganic compounds (autotrophs). Biology. Decomposers in the forest come in many different shapes and sizes. How forests increase the atmospheres humidity?a) By transpirationb) By inspirationc) By expirationd) By oxidationAnswer: aClarification: Forest release water vapor by transpiration which increases humidity. The primary producers in a forest ecosystem are? The first source of biomass is from plants that take carbon dioxide and water (in the presence of chlorophyll and light) and, through photosynthesis, convert light energy into the c. Producers in a forest include trees, grasses, shrubs, and algae. (d) Perennial plants, 5. Forest ecosystem B. Grassland ecosystem C. Pond ecosystem D. Lake ecosystem. 21. 2. Energy & Environment Management Multiple Choice Questions on Forest Ecosystems. (d) absence of soil entities, 9. (d) None of the above, 3. (a) Nitrogen cycle (b) Carbon cycle (c) Phosphorus cycle. Poor . (a) they are widely distributed. Correct option is A) Photosynthetic plants are the only producers that can produce food by using water and minerals from the soil, carbon dioxide from the air, and energy from sunlight in the presence of chlorophyll and other photosynthetic pigments in the photosynthetic regions such as leaves and young green tender stems. Forest absorbing water and they do not allow it to flow directly run off. B- Gross primary productivity is the difference between net productivity and the energy lost by producers for respiration. (A) Primary producers (B) Secondary consumer. Limitations of ecological pyramids involve all these statements, except Question 3. They form the basis of the food chain by creating food through photosynthesis or chemosynthesis. Where can we find the most feared spider in the world Tarantulas?a) In desertsb) In mountainsc) In tropical rain forestsd) In grassland forestAnswer: cClarification: Tarantulas is one of the deadliest spiders found in tropical rain forest. The bottom area where production is less than respiration in a pond ecosystem is termed as Profundal zone Tidal zone Benthic zone Limnetic zone The correct answer is - 1. In forest ecosystem, the producers form three major functions. (d) Forest ecosystem, 7. All three of the decomposers are in the Kingdom Fungi. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. (b) Small insects (c) Phytoplanktons (d) Small fishes Answer 3. (A) When material cycle starts (B) When sun rises (C) When any living organisam gain food. Decomposers are Organisms that break down. You cannot access byjus.com. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. (b) in the ecological pyramids, saprotrophs are not given any place (c) Humidity water. Decomposers are the garbage men of the animal kingdom; they take all the dead animals and plants (consumers and decomposers) and break them down into their nutrient components so that plants can use them to make more food. A forest ecosystem is a functional unit or a system that comprises of soil, trees, insects, animals, . (d) green algae, 8. (a) Deserts (b) Tropical rain forests (c) Oceans (d) Estuaries Answer. On which factor forest type is mainly dependent?a) Abioticb) Size of the forestc) Shape of treesd) Products from the treesAnswer: aClarification: The forest type mainly depends on abiotic factors such as the climate and soil characteristics of a region. The state is host to numerous species of birds, wildlife. Aquatic ecosystems are classified into two subgroups: 1) Freshwater ecosystems, such as rivers, lakes and ponds; 2) Marine ecosystems, such as oceans, estuary and mangroves. Most species of tarantula have poisonous fangs for killing prey and to protect itself from other organisms. (D) Decomposer. Class 12 Biology Chapter 14 Ecosystem MCQ Questions provided below covers all important topics given in this chapter. (a) Inorganic nutrients are recycled in an ecosystem (b) Energy flows through the ecosystem in the form of C-C bonds (c) Energy is recycled in an ecosystem (d) Respiration process releases energy 16. This is a characteristic feature of cropland ecosystem (a) Absence of weeds (b) Ecological succession (c) least genetic diversity Upper part of sea/aquatic ecosystem contains. (c) predictable and gradual changes in species composition take place in a given area What are the three different kinds of producers? Features . This ecosystem has the maximum biomass Forests dominated by conifers such as pine, hemlock, spruce and fir. Producers exist at the bottom of a forest food chain because they can absorb the sun's energy and convert it to sugars. Of our partners use cookies to Store and/or access information on a regular basis with these NEET Biology Questions Bald eagle is an illustration of a forest ecosystem consumer you can access. Settings Allow necessary cookies & Continue Continue with Recommended cookies Choose the factor on primary. Most important interacting units of a forest ecosystem are the tiger & amp ;, lion use At this time weight per unit area following types of productivity in a ecosystem. 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