{"id":4057,"date":"2016-05-06T11:49:00","date_gmt":"2016-05-06T06:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution-part-1\/"},"modified":"2023-03-22T17:12:31","modified_gmt":"2023-03-22T11:42:31","slug":"ncert-solutions-for-class-10-science-heredity-and-evolution","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/","title":{"rendered":"NCERT Solutions for Class 10 Science Heredity and Evolution"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#NCERT_Class_10_Science_Chapter_wise_Solutions\" >NCERT Class 10 Science Chapter wise Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#NCERT_Solutions_for_Class_10_Science_Heredity_and_Evolution\" >NCERT Solutions for Class 10 Science Heredity and Evolution<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_If_a_trait_A_exists_in_10_of_a_population_of_an_asexually_reproducing_species_and_a_trait_B_exists_in_60_of_the_same_population_which_trait_is_likely_to_have_arisen_earlier\" >1. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_How_does_the_creation_of_variations_in_a_species_promote_survival\" >2. How does the creation of variations in a species promote survival?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_How_do_Mendels_experiments_show_that_traits_may_be_dominant_or_recessive\" >1. How do Mendel\u2019s experiments show that traits may be dominant or recessive?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_How_do_Mendels_experiments_show_that_traits_are_inherited_independently\" >2. How do Mendel\u2019s experiments show that traits are inherited independently?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#3_A_man_with_blood_group_A_marries_a_woman_with_blood_group_O_and_their_daughter_has_blood_group_O_Is_this_information_enough_to_tell_you_which_of_the_traits-blood_group_A_or_O-_is_dominant_Why_or_why_not\" >3. A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits-blood group A or O- is dominant? Why or why not?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#4_How_is_the_sex_of_the_child_determined_in_human_beings\" >4. How is the sex of the child determined in human beings?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_What_are_the_different_ways_in_which_individuals_with_a_particular_trait_may_increase_in_a_population\" >1. What are the different ways in which individuals with a particular trait may increase in a population?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_Why_are_traits_acquired_during_the_life-time_of_an_individual_not_inherited\" >2. Why are traits acquired during the life-time of an individual not inherited?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#3_Why_are_the_small_numbers_of_surviving_tigers_a_cause_of_worry_from_the_point_of_view_of_genetics\" >3. Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_What_factors_could_lead_to_the_rise_of_a_new_species\" >1. What factors could lead to the rise of a new species?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_Will_geographical_isolation_be_a_major_factor_in_the_speciation_of_self-pollinating_plant_species_Why_or_why_not\" >2. Will geographical isolation be a major factor in the speciation of self-pollinating plant species? Why or why not?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#3_Will_geographical_isolation_be_a_major_factor_in_the_speciation_of_an_organism_that_reproduces_asexually_Why_or_why_not\" >3. Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_Give_an_example_of_characteristics_being_used_to_determine_how_close_two_species_are_in_evolutionary_terms\" >1. Give an example of characteristics being used to determine how close two species are in evolutionary terms.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_Can_the_wing_of_a_butterfly_and_the_wing_of_the_bat_be_considered_homologous_organs\" >2. Can the wing of a butterfly and the wing of the bat be considered homologous organs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#3_What_are_fossils_What_do_they_tell_us_about_the_process_of_evolution\" >3. What are fossils? What do they tell us about the process of evolution?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#1_Why_are_human_beings_who_look_so_different_from_each_other_in_terms_of_size_colour_and_looks_said_to_belong_to_the_same_species\" >1. Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#2_In_evolutionary_terms_can_we_say_which_among_bacteria_spiders_fish_and_chimpanzees_have_a_%E2%80%98better_body_design_Why_or_why_not\" >2. In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a \u2018better\u2019 body design? Why or why not?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#NCERT_Solutions_for_Class_10_Science\" >NCERT Solutions for Class 10 Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/#CBSE_app_for_Students\" >CBSE app for Students<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>NCERT Solutions for Class 10 Science Heredity and Evolution\u00a0<\/strong> Class 10 Science Class book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE Board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 10 Science chapter wise NCERT solution for Science Book for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Class 10 Science\u00a0<a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-10-science\/1176\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/10%20Science%20Book.jpg\" alt=\"NCERT Solutions for Class 10 Science Heredity and Evolution Part 1\" width=\"126\" height=\"155\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_10_Science_Chapter_wise_Solutions\"><\/span><span class=\"underline-text\">NCERT Class 10 Science Chapter wise Solutions<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>Chemical Reactions and Equations<\/li>\n<li>Acids, Bases and Salts<\/li>\n<li>Metals and Non-metals<\/li>\n<li>Carbon and Its Compounds<\/li>\n<li>Periodic Classification of Elements<\/li>\n<li>Life Processes<\/li>\n<li>Control and Coordination<\/li>\n<li>How do Organisms Reproduce?<\/li>\n<li>Heredity and Evolution<\/li>\n<li>Light Reflection and Refraction<\/li>\n<li>Human Eye and Colourful World<\/li>\n<li>Electricity<\/li>\n<li>Magnetic Effects of Electric Current<\/li>\n<li>Sources of Energy<\/li>\n<li>Our Environment<\/li>\n<li>Management of Natural Resources<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_10_Science_Heredity_and_Evolution\"><\/span>NCERT Solutions for Class 10 Science Heredity and Evolution<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_If_a_trait_A_exists_in_10_of_a_population_of_an_asexually_reproducing_species_and_a_trait_B_exists_in_60_of_the_same_population_which_trait_is_likely_to_have_arisen_earlier\"><\/span><strong>1. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Trait B.<\/p>\n<hr \/>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_How_does_the_creation_of_variations_in_a_species_promote_survival\"><\/span><strong>2. How does the creation of variations in a species promote survival? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Depending on the nature of variations different individuals would have difference kinds of advantage to adjust in particular habitat. Variation help the individual to have different traits that may develop the organisms more tolerable.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"1_How_do_Mendels_experiments_show_that_traits_may_be_dominant_or_recessive\"><\/span><strong>1. How do Mendel\u2019s experiments show that traits may be dominant or recessive?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>In Monohybrid cross of Mendel between tall and dwarf pea plant, all progeny in F1 generation are tall and in F2 generation, 75% of pea plants are tall but 25% are dwarf. This shows that traits are dominant or recessive.<\/p>\n<hr \/>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_How_do_Mendels_experiments_show_that_traits_are_inherited_independently\"><\/span><strong>2. How do Mendel\u2019s experiments show that traits are inherited independently?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>When a pea plant having round green seeds is crossed with a pea plant having wrinkled yellow seeds in F1 generation all the plants have round yellow seeds. But in F2 generation two new traits that is round yellow and wrinkled green appear. This shows that traits are inherited independently.<\/p>\n<hr \/>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"3_A_man_with_blood_group_A_marries_a_woman_with_blood_group_O_and_their_daughter_has_blood_group_O_Is_this_information_enough_to_tell_you_which_of_the_traits-blood_group_A_or_O-_is_dominant_Why_or_why_not\"><\/span><strong>3. A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits-blood group A or O- is dominant? Why or why not? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>No, the information is not enough because the blood group is determined by a pair of gene. One inherited from mother and other from father. In this case, the child inherited gene for O blood group from mother as well as father.<\/p>\n<hr \/>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"4_How_is_the_sex_of_the_child_determined_in_human_beings\"><\/span><strong>4. How is the sex of the child determined in human beings?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>A child which inherits X chromosome from her father will be a girl and one who inherits Y chromosome from him will be a boy.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"1_What_are_the_different_ways_in_which_individuals_with_a_particular_trait_may_increase_in_a_population\"><\/span><strong>1. What are the different ways in which individuals with a particular trait may increase in a population? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>The different ways in which individual with a particular trait may increase are:<\/p>\n<p style=\"text-align: justify;\">(a) Natural selection- Certain variations give survival advantage to individuals in a population in a changed situation resulting in increase of their population.<\/p>\n<p style=\"text-align: justify;\">(b) Genetic drift- Accidents in small population even if they give no survival advantage also lead to increase to certain individual in population.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Heredity and Evolution<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Why_are_traits_acquired_during_the_life-time_of_an_individual_not_inherited\"><\/span><strong>2. Why are traits acquired during the life-time of an individual not inherited?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>Any change in nor-reproductive tissues cannot be passed on to the DNA of the germ cells. Therefore, the traits acquired during life-time on an individual are not inherited.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"3_Why_are_the_small_numbers_of_surviving_tigers_a_cause_of_worry_from_the_point_of_view_of_genetics\"><\/span><strong>3. Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>It will affect the frequency of selection which is essential for survival. For effective selection, the population must consist of an infinitely large number of individual in population.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"1_What_factors_could_lead_to_the_rise_of_a_new_species\"><\/span><strong>1. What factors could lead to the rise of a new species?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>Following factors could lead to the rise of new species:<\/p>\n<p><strong>(a)<\/strong> Changes in gene frequency in small breeding isolated populations.<\/p>\n<p><strong>(b)<\/strong> Natural selection<\/p>\n<p><strong>(c)<\/strong> Changes in number of chromosome.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Heredity and Evolution<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Will_geographical_isolation_be_a_major_factor_in_the_speciation_of_self-pollinating_plant_species_Why_or_why_not\"><\/span><strong>2. Will geographical isolation be a major factor in the speciation of self-pollinating plant species? Why or why not? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>No, because geographical barrier do not allow breeding between such individuals of a population which reproduce sexually. Moreover, asexually reproducing organism pass on the parental DNA to offspring which gives no chance of speciation.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Heredity and Evolution<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Will_geographical_isolation_be_a_major_factor_in_the_speciation_of_an_organism_that_reproduces_asexually_Why_or_why_not\"><\/span><strong>3. Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>Yes, due to geographical isolation, the two populations are separated. The levels of gene flow between them will decrease. The isolated population will breed with local population resulting in entry of isolated population into new population.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"1_Give_an_example_of_characteristics_being_used_to_determine_how_close_two_species_are_in_evolutionary_terms\"><\/span><strong>1. Give an example of characteristics being used to determine how close two species are in evolutionary terms. <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ans. <\/strong>Analysis of the organ structure in fossils allows us to make estimates of how far evolutionary relationships go. For example, presence of feather in some fossils dinosaurs indicate the birds are closely related to reptiles.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"2_Can_the_wing_of_a_butterfly_and_the_wing_of_the_bat_be_considered_homologous_organs\"><\/span><strong>2. Can the wing of a butterfly and the wing of the bat be considered homologous organs?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>No, though the function of wing in both the cases in same but their structural plan and origin in different.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 10 Science Heredity and Evolution<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_What_are_fossils_What_do_they_tell_us_about_the_process_of_evolution\"><\/span><strong>3. What are fossils? What do they tell us about the process of evolution?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Preserved traces if living organisms are called fossils found closer to the surface of earth are more recent in origin than the fossils we find in deeper layers.<\/p>\n<p style=\"text-align: justify;\">Fossils also help us to find evolutionary relation between organisms.<\/p>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"1_Why_are_human_beings_who_look_so_different_from_each_other_in_terms_of_size_colour_and_looks_said_to_belong_to_the_same_species\"><\/span><strong>1. Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>All humans are a single species <em>Homo sapiens <\/em>which originated in Africa. Some of our ancestors left Africa, while others stayed on. Those who migrated slowly spread across the planets.<\/p>\n<hr \/>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_In_evolutionary_terms_can_we_say_which_among_bacteria_spiders_fish_and_chimpanzees_have_a_%E2%80%98better_body_design_Why_or_why_not\"><\/span><strong>2. In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a \u2018better\u2019 body design? Why or why not? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Bacteria have better body design because it has so much variation to adjust in different climatic condition.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_10_Science\"><\/span>NCERT Solutions for Class 10 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions for Class 10 Science Heredity and Evolution PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 10 Science includes text book solutions from Book. NCERT Solutions for CBSE Class 10 Science have total 16 chapters. 10 Science NCERT Solutions in PDF for free Download on our website. Ncert Science class 10 solutions PDF and Science ncert class 10 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Students\"><\/span>CBSE app for Students<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 10 Social Science, Computer Science, Home Science,Hindi ,English, Maths Science do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 10 Science Heredity and Evolution\u00a0 Class 10 Science Class book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE Board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text &#8230; <a title=\"NCERT Solutions for Class 10 Science Heredity and Evolution\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-10-science-heredity-and-evolution\/\" aria-label=\"More on NCERT Solutions for Class 10 Science Heredity and Evolution\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":30059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1367],"tags":[1043,283,438,216,349],"class_list":["post-4057","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-science-cbse-class-10","tag-cbse-class-10-science","tag-cbse-study-material","tag-class-10","tag-ncert-solutions","tag-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 10 Science Heredity and Evolution<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 10 Science Heredity and Evolution in PDF format for free download. 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