{"id":2966,"date":"2020-08-26T06:17:40","date_gmt":"2020-08-26T00:47:40","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=2966"},"modified":"2021-07-02T15:04:28","modified_gmt":"2021-07-02T09:34:28","slug":"kseeb-solutions-class-9-science-chapter-7","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/kseeb-solutions-class-9-science-chapter-7\/","title":{"rendered":"KSEEB Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms"},"content":{"rendered":"

Karnataka Board Class 9 Science Chapter 7 Diversity in Living Organisms<\/h2>\n

KSEEB Solutions for Class 9 Science Chapter 7 Intext Questions<\/h3>\n

Question 1.
\nWhy do we classify organisms?
\nAnswer:
\nWe have to classify organisms because in our surroundings millions of organisms are there. Each organism is different from all others to a lesser or greater extent.<\/p>\n

Question 2.
\nGive three examples of the range of variations that you see in life forms around you.
\nAnswer:<\/p>\n

    \n
  1. Monkey has a lot more in common with us than with the cow.<\/li>\n
  2. There is difference in desi cow and jersey cow.<\/li>\n
  3. In human beings also we find difference (Height, dwarf and red, white colour).<\/li>\n<\/ol>\n

    Question 3.
    \nWhich do you think is a more basic characteristic for classifying organisms?
    \n(a) the place where they live?
    \n(b) the kind of cells they are made of why?
    \nAnswer:
    \n(a) This is not useful for classifying organisms, because the habitat of all living beings is not the same. It is different for different organisms.<\/p>\n

    (b) This is a more basic characteristic for classifying organisms because Nucleated cells would have the capacity to participate in making a multicellular organism because they can take up specialised functions.<\/p>\n

    Question 4.
    \nWhat is the primary characteristic on which the first division of organisms is made?
    \nAnswer:
    \nNucleus is the primary characteristic on which the first division of organisms is made.<\/p>\n

    Question 5.
    \nOn what bases are plants and animals put into different categories?
    \nAnswer:
    \nPlants prepare their own food by the process called photosynthesis. But animals are not preparing their own food on these bases are plants and animals put into different categories.<\/p>\n

    Question 6.
    \nWhich organisms are called primitive and how are they different from the so-called advanced organisms?
    \nAnswer:
    \nOlder organisms are called primitive and they have simple structure. Body structure of advanced organism is complex.<\/p>\n

    Question 7.
    \nWill advanced organisms be the same as complex organisms? Why?
    \nAnswer:
    \nAdvanced organisms as well as complex organisms both are of same type. Because they both do not have simple body structure.<\/p>\n

    Question 8.
    \nWhat is the criterion for the classification of organisms as belonging to kingdom Monera or Protista?
    \nAnswer:
    \n(a) Cell wall or do not have a cell wall
    \n(b) Mode of nutrition
    \n(c) Unicellular or Multicellular
    \n(d) Appendage
    \n(e) Autotrophic or heterotropic.<\/p>\n

    Question 9.
    \nIn which kingdom will you place an organism which is single-celled, eukaryotic, and photosynthetic?
    \nAnswer:
    \nMonera.<\/p>\n

    Question 10.
    \nIn the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
    \nAnswer:
    \nIn the hierarchy of classification species will have the Smallest number of organisms with a maximum of characteristics in common and the kingdom will have the largest number of organisms.<\/p>\n

    Question 11.
    \nWhich division among plants has the simplest organisms?
    \nAnswer:
    \nAmong plants Thallophyta has the simplest organisms.<\/p>\n

    Question 12.
    \nHow are pteridophytes different from the phanerogams?
    \nAnswer:<\/p>\n\n\n\n\n\n
    Pteridophytes<\/td>\nPhenerograms<\/td>\n<\/tr>\n
    1. It has a conduction system.<\/td>\nWell-differentiated reproductive tissues.<\/td>\n<\/tr>\n
    2. Cryptogame<\/td>\nProduce seeds<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Question 13.
    \nHow do gymnosperms and angiosperms differ from each other?
    \nAnswer:<\/p>\n\n\n\n\n\n\n\n
    Gymnosperms<\/td>\nAngiosperms<\/td>\n<\/tr>\n
    1. Naked seed<\/td>\nCovered seeds<\/td>\n<\/tr>\n
    2. Evergreen and woody<\/td>\nFlowering plants<\/td>\n<\/tr>\n
    3. Perennial<\/td>\nMonocot or dicot<\/td>\n<\/tr>\n
    Ex: Pinas deodar<\/td>\nEx: Pulses, grain<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Question 14.
    \nHow do poriferan animals differ from coelenterate animals.
    \nAnswer:<\/p>\n\n\n\n\n\n\n
    Porifera<\/td>\nCoelenterate<\/td>\n<\/tr>\n
    1. Cellular level of organization.<\/td>\nTissue level of organization.<\/td>\n<\/tr>\n
    2. No division of labor.<\/td>\nThe division of labor is seen.<\/td>\n<\/tr>\n
    3. Do not have colors.<\/td>\nHave color.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Question 15.
    \nHow do annelid animals differ from arthropods?
    \nAnswer:<\/p>\n\n\n\n\n\n\n
    Arthropoda<\/td>\nCoelenterata<\/td>\n<\/tr>\n
    1. Exoskeleton<\/td>\nNo skeleton<\/td>\n<\/tr>\n
    2. Separate sexes.<\/td>\nSexes may be unified.<\/td>\n<\/tr>\n
    3. Segmented body head, thorax, and abdomen.<\/td>\nThe body is segmented into rings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Question 16.
    \nWhat are the differences between amphibians and reptiles?
    \nAnswer:<\/p>\n\n\n\n\n\n\n
    Amphibians<\/td>\nReptiles<\/td>\n<\/tr>\n
    1. Levels both inland and water.<\/td>\nIt can live in water but need to come out for oxygen.<\/td>\n<\/tr>\n
    2. Can jump.<\/td>\nMove by crawling.<\/td>\n<\/tr>\n
    3. The skin is moist and soft.<\/td>\nThe skin is hardened.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Question 17.
    \nWhat are the differences between animals belonging to the Aves group and those in the Mammalia group?
    \nAnswer:<\/p>\n\n\n\n\n\n
    Aves<\/td>\nMammals<\/td>\n<\/tr>\n
    1. Body covered by feathers.<\/td>\nThe body is covered with hair.<\/td>\n<\/tr>\n
    2. Streamlined body.<\/td>\nThe body is not streamlined except whales, dolphins.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    KSEEB Solutions for Class 9 Science Chapter 7 Textbook Exercises<\/h3>\n

    Question 1.
    \nWhat are the advantages of classifying organisms?
    \nAnswer:
    \nThe scientific name for an organism is unique and can be used to identify it anywhere in the world. This is the advantage of classifying organisms.<\/p>\n

    Question 2.
    \nHow would you choose between two characteristics to be used for developing a hierarchy in classification?
    \nAnswer:
    \nWe do not list out the whole hierarchy groups it belongs to. Instead, we limit ourselves to writing the name of the genus and species of that particular organism.<\/p>\n

    Question 3.
    \nExplain the basis for grouping organisms into five kingdoms.
    \nAnswer:
    \nFollowing are the characteristics used for hierarchial classification.<\/p>\n