A graphical representation of number of individuals of different species belonging to each trophic level in an ecosystem is known as

SOLUTION Anecological pyramid is a graphical representation designed to show either the number, biomass and energy at each trophic level. Each of the ecological pyramids have producers at the bottom most level supporting consumers as we move towards the top of a pyramid. The ecological pyramids are of three types: pyramid of number, pyramid of biomass, pyramid of energy. The pyramid of number represents the total number of organisms at each trophic level.

• An ecological pyramid is a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem. • Biomass pyramids show how much biomass (the amount of living or organic matter present in an organism) is present in the organisms at each trophic level, while productivity pyramids show the procreation or turnover in biomass. • There is also pyramid of numbers which represent the number of organisms in each trophic level. • They may be upright (e.g. Grassland ecosystem), inverted (parasitic ecosystem) or dumbbell shaped (forest ecosystem). • Energy pyramids begin with producers on the bottom (such as plants) and proceed through the various trophic levels Select the correct statements regarding the pyramids of ecosystem (A) The pyramid of number of a tree ecosystem is inverted (B) Pyramid of biomass in sea is inverted (C) Pyramid of energy is mostly upright except in one special case (D) Pyramids do not properly account the species belonging to two or more trophic levels

A graphical representation of the link between different living species at different trophic levels are called an Ecological Pyramids. This was presented by G.Evylen Hutchinson and Raymond Lindeman. Each trophic level’s biomass is allocated based on the number of individual organisms. A trophic level is formed by each step or level of the food chain. The first trophic level is occupied by autotrophs or producers. They convert solar energy into a form that may be used by heterotrophs or consumers. Herbivores, or primary consumers, are at the second trophic level, small carnivores, or secondary consumers, are at the third, and larger carnivores, or tertiary consumers, are at the fourth. The various forms of ecological pyramids are determined by the amount of energy or biomass available to each trophic level. Continue reading to know more. What is an Ecological Pyramid? Definition: An ecological pyramid is a graphical or diagrammatic representation showing the relationship between the organisms at different trophic levels in a food chain. Some key terms related to the ecology and ecological pyramids are as follows: 1. Trophic Level: The position occupied by an organism (in a food chain) or a group of similar organisms (in an ecological pyramid) is called a trophic level. Trophic literally means “Feeding”; hence the trophic levels are the sequential positions of organisms based on their feeding habits. Different trophic levels are as follows: a. Producers: These are the primar...

Learning Outcomes • Differentiate between food chains and food webs and recognize the importance of each The term “food chain” is sometimes used metaphorically to describe human social situations. In this sense, food chains are thought of as a competition for survival, such as “who eats whom?” Someone eats and someone is eaten. Therefore, it is not surprising that in our competitive “dog-eat-dog” society, individuals who are considered successful are seen as being at the top of the food chain, consuming all others for their benefit, whereas the less successful are seen as being at the bottom. Figure 1. These are the trophic levels of a food chain in Lake Ontario at the United States-Canada border. Energy and nutrients flow from photosynthetic green algae at the bottom to the top of the food chain: the Chinook salmon. The scientific understanding of a food chain is more precise than in its everyday usage. In ecology, a food chain is a linear sequence of organisms through which nutrients and energy pass: primary producers, primary consumers, and higher-level consumers are used to describe ecosystem structure and dynamics. There is a single path through the chain. Each organism in a food chain occupies what is called a trophic level. Depending on their role as producers or consumers, species or groups of species can be assigned to various trophic levels. In many ecosystems, the bottom of the food chain consists of photosynthetic organisms (plants and/or phytoplankton), which ...

In calm air the air temperature is -10 o C, if the wind speed should increase to 30 knots (with no change in air temperature) the thermometer would indicate: A. A much higher temperature than -10 o C B. A much lower temperature than -10 o C C. A temperature of -10 o C D. A temperature of -30 o C View Answer • Arithmetic Ability • Competitive Reasoning • Competitive English • Data Interpretation • General Knowledge • State GK • History • Geography • Current Affairs • Banking Awareness • Computer Fundamentals • Networking • C Program • Java Program • SQL • Database • HTML • CSS • Javascript • PHP • Computer Science • Electronics and Communications Engineering • Electrical Engineering • Mechanical Engineering • Civil Engineering • Chemical Engineering • Automobile Engineering • Biotechnology Engineering • Mining Engineering • Commerce • Management • Law • Agriculture • Sociology • Political Science • Pharmacy