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picture1_Ecosystem Ncert Pdf 160847 | Ncert Solutions For Class 12 Biology Chapter 14 Ecosystem


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File: Ecosystem Ncert Pdf 160847 | Ncert Solutions For Class 12 Biology Chapter 14 Ecosystem
ncert solutions class xii biology chapter 14 ecosystem ql fill in the blanks a plants are called as because they fix carbon dioxide b in an ecosystem dominated by trees ...

icon picture PDF Filetype PDF | Posted on 21 Jan 2023 | 2 years ago
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                                                                               NCERT SOLUTIONS 
                                                                              CLASS-XII BIOLOGY 
                                                                                      CHAPTER-14 
                                                                                      ECOSYSTEM
                           Ql: Fill in the blanks. 
                           (a)    Plants are called as ____ because they fix carbon dioxide. 
                           (b)    In an ecosystem dominated by trees, the pyramid (of numbers) is 
                             ____ type. 
                                  In aquatic ecosystems, the limiting factor for the productivity is
                           (c)
                           (d)    Common detritivores in our ecosystem are ___ _ 
                           (e)    The major reservoir of carbon on earth is ___ _ 
                          Answer: 
                                                            autotroph
                                                                      s 
                           (a)    Plants are called as                    because they fix carbpn dioxide. 
                                  In an ecosystem dominated by trees, the pyramid (of numbers) is of
                           (b)
                                inverted 
                                           t pe.
                                            y 
                                  In aquatic ecos stems, the limiting factoi foi productivity is�.
                           (c)
                                                     y
                                                    .  .      .                          earthwonns 
                           (d)    Common detrit1vores in our ecosystem are----. 
                                                                                    oceans 
                           (e)    A major reservoir of carbon on Earth is                     .
                           Q2: Which one of the following has the largest population in a food chain? 
                           (a)     Producers
                           (b)    Primary consumers
                           (c)    Secondary consumers
                           (d)    Decomposers
                          Answer: 
                           (d) Decomposers
                           Decomposers include micro-organisms such as bacteria and fungi. They form 
                           the largest population in a food chain and obtain nutrients by breaking down 
                           the remains of dead plants and animals. 
                                                        myncertsolutions.com
                           Q3: The second trophic level in a lake is­
                           (a)    Phytoplankton 
                           (b)    Zooplankton
                           (c)    Benthos
                           (d)    Fishes
                        Answer: 
                        (b)     Zooplankton
                        Zooplankton are primary consumers in aquatic food chains that feed upon 
                        phytoplankton. Therefore, they are present at the second trophic level in a lake. 
                          Q4: Secondary producers are 
                          (a)     Herbivores
     myncertsolutions.com
     myncertsolutions.com
     myncertsolutions.com
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...Ncert solutions class xii biology chapter ecosystem ql fill in the blanks a plants are called as because they fix carbon dioxide b an dominated by trees pyramid of numbers is type aquatic ecosystems limiting factor for productivity c d common detritivores our e major reservoir on earth answer autotroph s carbpn inverted t pe y ecos stems factoi foi earthwonns detritvores oceans q which one following has largest population food chain producers primary consumers secondary decomposers include micro organisms such bacteria and fungi form obtain nutrients breaking down remains dead animals myncertsolutions com second trophic level lake phytoplankton zooplankton benthos fishes chains that feed upon therefore present at herbivores...

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