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Ecosystem

Match column I with column II and select correct option from given codes.
Column I Column II
A. Gross primary productivity (i) Green plants
B. Secondary productivity (ii) Rate of synsis of organic matter by consumers
C. Transducers (iii) Total organic matter produced from solar energy
D. Food web (iv) Interconnection of food chains

A-(i), B-(ii), C-(iii), D-(iv) A-(iii), B-(ii), C-(i), D-(iv) A-(iii), B-(iv), C-(i), D-(ii) A-(ii), B-(i), C-(iv), D-(iii)

Column I	Column II
A. Gross primary productivity	Gross primary productivity, or GPP, is the rate at which solar energy is captured in sugar molecules during photosynthesis (energy captured per unit area per unit time). Producers such as plants use some of this energy for metabolism/cellular respiration and some for growth (building tissues). So the correct option is 'total organic matter produced from solar energy'.
B. Secondary productivity	Secondary productivity The rate of biomass formation or energy fixation by heterotrophic organisms, such as grazers and decomposers (see heterotrophic nutrition). These derive all their energy from photosynthetic plants and other autotrophs, either directly or indirectly, and their productivity determines the number of trophic levels and the lengths of the food chains within an ecosystem ? both of which are likely to be increased by greater secondary productivity. So the correct option is 'rate of synthesis of organic matter by consumers'.
C. Transducers	Transducers are the one who converts one form of energy into another form of energy. Energy types can be electrical, mechanical, electromagnetic (including light), chemical, acoustic, and thermal energy. plants receive light energy and convert it into chemical energy that viruses and animals use. So the correct option is 'green plants'.
D. Food web	A food web (or food cycle) is a natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community. Another name for food web is consumer-resource system. To maintain their bodies, grow, develop, and to reproduce, autotrophs produce organic matter from inorganic substances, including both minerals and gases such as carbon dioxide. These chemical reactions require energy, which mainly comes from the Sun and largely by photosynthesis, which is then passed on to the next consumer. So the correct option is 'interconnection of food chains'.

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Which one of the following is the most productive ecosystem?</h2></div>

Match column I with column II and select correct option from given codes.
Column I Column II
A. Gross primary productivity (i) Green plants
B. Secondary productivity (ii) Rate of synsis of organic matter by consumers
C. Transducers (iii) Total organic matter produced from solar energy
D. Food web (iv) Interconnection of food chains

Arrange the following ecosystems in increasing order of their mean NPP(tons/ha/year).<br> A. Tropics deciduous forest<br> <b></b>B. Temperature coniferous forest<br> C. Tropical rainforest<br> D. Temperate deciduous forest.<br> </h2></div>

Match column I with column II and select the correct option from the given codes.<table class="wysiwyg-table"><tbody><tr><td>Column I</td><td>Column II</td></tr><tr><td>A. Gross primary productivity</td><td>(i) Green plants</td></tr><tr><td>B. Secondary productivity</td><td>(ii) Rate of synthesis of organic matter by consumers</td></tr><tr><td>C. Transducers</td><td>(iii) Total organic matter produced from solar energy</td></tr><tr><td>D. Food web</td><td>(iv) Interconnection of food chains</td></tr></tbody></table></h2></div>

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A-(iii), B-(ii), C-(i), D-(iv)

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The Living World

Biological Classification

Plant Kingdom

Animal Kingdom

Morphology of Flowering Plants

Anatomy of Flowering Plants

Structural Organisations in Animals

Cell : The Unit of Life

Biomolecules

Cell Cycle and Cell Division

Transport in Plants

Mineral Nutrition

Photosynthesis in Higher Plants

Respiration in Plants

Plant Growth and Development

Digestion and Absorption

Breathing and Exchange of Gases

Body Fluids and Circulation

Excretory Products and Elimination

Locomotion and Movement

Neural Control and Coordination

Chemical Control and Coordination

Reproduction in Organisms

Sexual Reproduction in Flowering Plants

Human Reproduction

Reproductive Health

Principles of Inheritance and Variation

Molecular Basis of Inheritance

Evolution

Human Health and Disease

Strategies for Enhancement in Food Production

Microbes in Human Welfare

Biotechnology Principles and Processes

Biotechnology and its Applications

Organisms and Populations

Ecosystem

Biodiversity and Conservation

Environmental Issues

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Which one of the following is the most productive ecosystem?</h2></div>

Arrange the following ecosystems in increasing order of their mean NPP(tons/ha/year).<br> A. Tropics deciduous forest<br> <b></b>B. Temperature coniferous forest<br> C. Tropical rainforest<br> D. Temperate deciduous forest.<br> </h2></div>

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