{"id":3961,"date":"2026-03-22T10:40:38","date_gmt":"2026-03-22T10:40:38","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-8-science\/how-nature-works-in-harmony-class-8-mcq\/"},"modified":"2026-03-22T10:40:38","modified_gmt":"2026-03-22T10:40:38","slug":"how-nature-works-in-harmony-class-8-mcq","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-8-science\/how-nature-works-in-harmony-class-8-mcq\/","title":{"rendered":"How Nature Works in Harmony class 8 MCQ"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam511\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-511\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the 'Submit' button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-511\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8546'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>mutualism is illustrated by the relationship between:<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8546' class='watupro-question-id'\/><input type='hidden' id='answerType8546' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8546'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8546[]' id='answer-id-34132' class='answer   answerof-8546  ' value='34132'   \/><label for='answer-id-34132' id='answer-label-34132' class=' answer'><span>Ticks on the body of dogs.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8546[]' id='answer-id-34133' class='answer   answerof-8546  ' value='34133'   \/><label for='answer-id-34133' id='answer-label-34133' class=' answer'><span>Orchids on trees<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8546[]' id='answer-id-34134' class='answer   answerof-8546  ' value='34134'   \/><label for='answer-id-34134' id='answer-label-34134' class=' answer'><span>Honeybees and flowers.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8546[]' id='answer-id-34135' class='answer   answerof-8546  ' value='34135'   \/><label for='answer-id-34135' id='answer-label-34135' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8547'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>The correct Food chain is<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8547' class='watupro-question-id'\/><input type='hidden' id='answerType8547' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8547'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8547[]' id='answer-id-34136' class='answer   answerof-8547  ' value='34136'   \/><label for='answer-id-34136' id='answer-label-34136' class=' answer'><span>frog \u2192 eagle \u2192 insects \u2192 grass \u2192 snake<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8547[]' id='answer-id-34137' class='answer   answerof-8547  ' value='34137'   \/><label for='answer-id-34137' id='answer-label-34137' class=' answer'><span>grass \u2192 insects \u2192 frog \u2192 snake \u2192 eagle<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8547[]' id='answer-id-34138' class='answer   answerof-8547  ' value='34138'   \/><label for='answer-id-34138' id='answer-label-34138' class=' answer'><span>grass \u2192 insects \u2192 snake \u2192 frog \u2192 eagle<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8547[]' id='answer-id-34139' class='answer   answerof-8547  ' value='34139'   \/><label for='answer-id-34139' id='answer-label-34139' class=' answer'><span>insects \u2192 frog \u2192 snake \u2192 eagle -> grass<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8548'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>Commensalism is where One organism benefits while the _______________<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8548' class='watupro-question-id'\/><input type='hidden' id='answerType8548' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8548'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8548[]' id='answer-id-34140' class='answer   answerof-8548  ' value='34140'   \/><label for='answer-id-34140' id='answer-label-34140' class=' answer'><span>other is not affected<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8548[]' id='answer-id-34141' class='answer   answerof-8548  ' value='34141'   \/><label for='answer-id-34141' id='answer-label-34141' class=' answer'><span>other is harmed<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8548[]' id='answer-id-34142' class='answer   answerof-8548  ' value='34142'   \/><label for='answer-id-34142' id='answer-label-34142' class=' answer'><span>also benifits equally<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8548[]' id='answer-id-34143' class='answer   answerof-8548  ' value='34143'   \/><label for='answer-id-34143' id='answer-label-34143' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8549'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>In parasitism, one organism benefits while the other:<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8549' class='watupro-question-id'\/><input type='hidden' id='answerType8549' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8549'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8549[]' id='answer-id-34144' class='answer   answerof-8549  ' value='34144'   \/><label for='answer-id-34144' id='answer-label-34144' class=' answer'><span>Produces food<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8549[]' id='answer-id-34145' class='answer   answerof-8549  ' value='34145'   \/><label for='answer-id-34145' id='answer-label-34145' class=' answer'><span> Is unaffected<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8549[]' id='answer-id-34146' class='answer   answerof-8549  ' value='34146'   \/><label for='answer-id-34146' id='answer-label-34146' class=' answer'><span> Is harmed<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8549[]' id='answer-id-34147' class='answer   answerof-8549  ' value='34147'   \/><label for='answer-id-34147' id='answer-label-34147' class=' answer'><span>Gains protection<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8550'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>where is Jim Corbett National Park located?<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8550' class='watupro-question-id'\/><input type='hidden' id='answerType8550' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8550'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8550[]' id='answer-id-34148' class='answer   answerof-8550  ' value='34148'   \/><label for='answer-id-34148' id='answer-label-34148' class=' answer'><span>Uttarakhand<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8550[]' id='answer-id-34149' class='answer   answerof-8550  ' value='34149'   \/><label for='answer-id-34149' id='answer-label-34149' class=' answer'><span>Odisha<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8550[]' id='answer-id-34150' class='answer   answerof-8550  ' value='34150'   \/><label for='answer-id-34150' id='answer-label-34150' class=' answer'><span>Manipur<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8550[]' id='answer-id-34151' class='answer   answerof-8550  ' value='34151'   \/><label for='answer-id-34151' id='answer-label-34151' class=' answer'><span>Gujarat<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8551'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>what do Decomposers\u00a0 does?<\/div><input type='hidden' name='question_id[]' id='qID_6' value='8551' class='watupro-question-id'\/><input type='hidden' id='answerType8551' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8551'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8551[]' id='answer-id-34152' class='answer   answerof-8551  ' value='34152'   \/><label for='answer-id-34152' id='answer-label-34152' class=' answer'><span>break down dead matter and recycle nutrients<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8551[]' id='answer-id-34153' class='answer   answerof-8551  ' value='34153'   \/><label for='answer-id-34153' id='answer-label-34153' class=' answer'><span>produce the food<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8551[]' id='answer-id-34154' class='answer   answerof-8551  ' value='34154'   \/><label for='answer-id-34154' id='answer-label-34154' class=' answer'><span>eat plant and animals<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8551[]' id='answer-id-34155' class='answer   answerof-8551  ' value='34155'   \/><label for='answer-id-34155' id='answer-label-34155' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8552'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>which of the following is incorrect?<\/div><input type='hidden' name='question_id[]' id='qID_7' value='8552' class='watupro-question-id'\/><input type='hidden' id='answerType8552' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8552'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8552[]' id='answer-id-34156' class='answer   answerof-8552  ' value='34156'   \/><label for='answer-id-34156' id='answer-label-34156' class=' answer'><span>Aquatic ecosystems include ponds, rivers, and lake<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8552[]' id='answer-id-34157' class='answer   answerof-8552  ' value='34157'   \/><label for='answer-id-34157' id='answer-label-34157' class=' answer'><span> terrestrial ecosystems include forests, farms or even large trees like banyan, mango<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8552[]' id='answer-id-34158' class='answer   answerof-8552  ' value='34158'   \/><label for='answer-id-34158' id='answer-label-34158' class=' answer'><span>Farmland is a human-made ecosystem<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8552[]' id='answer-id-34159' class='answer   answerof-8552  ' value='34159'   \/><label for='answer-id-34159' id='answer-label-34159' class=' answer'><span>None of these<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8553'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>A population refers to organisms of:<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8553' class='watupro-question-id'\/><input type='hidden' id='answerType8553' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8553'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8553[]' id='answer-id-34160' class='answer   answerof-8553  ' value='34160'   \/><label for='answer-id-34160' id='answer-label-34160' class=' answer'><span>The same type living in a habitat at a given time<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8553[]' id='answer-id-34161' class='answer   answerof-8553  ' value='34161'   \/><label for='answer-id-34161' id='answer-label-34161' class=' answer'><span>Only plant species in a region<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8553[]' id='answer-id-34162' class='answer   answerof-8553  ' value='34162'   \/><label for='answer-id-34162' id='answer-label-34162' class=' answer'><span>Only animal species in a region<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8553[]' id='answer-id-34163' class='answer   answerof-8553  ' value='34163'   \/><label for='answer-id-34163' id='answer-label-34163' class=' answer'><span>Different types living in a habitat<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8554'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>Pollination is the process in which pollen is transferred from the stamens to the:<\/div><input type='hidden' name='question_id[]' id='qID_9' value='8554' class='watupro-question-id'\/><input type='hidden' id='answerType8554' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8554'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8554[]' id='answer-id-34164' class='answer   answerof-8554  ' value='34164'   \/><label for='answer-id-34164' id='answer-label-34164' class=' answer'><span>stalk<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8554[]' id='answer-id-34165' class='answer   answerof-8554  ' value='34165'   \/><label for='answer-id-34165' id='answer-label-34165' class=' answer'><span>petal<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8554[]' id='answer-id-34166' class='answer   answerof-8554  ' value='34166'   \/><label for='answer-id-34166' id='answer-label-34166' class=' answer'><span>sepals<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8554[]' id='answer-id-34167' class='answer   answerof-8554  ' value='34167'   \/><label for='answer-id-34167' id='answer-label-34167' class=' answer'><span>carpels<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8555'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>What kind of component is sunlight in an ecosystem?<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8555' class='watupro-question-id'\/><input type='hidden' id='answerType8555' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8555'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8555[]' id='answer-id-34168' class='answer   answerof-8555  ' value='34168'   \/><label for='answer-id-34168' id='answer-label-34168' class=' answer'><span>biotic<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8555[]' id='answer-id-34169' class='answer   answerof-8555  ' value='34169'   \/><label for='answer-id-34169' id='answer-label-34169' class=' answer'><span>Organic<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8555[]' id='answer-id-34170' class='answer   answerof-8555  ' value='34170'   \/><label for='answer-id-34170' id='answer-label-34170' class=' answer'><span>Abiotic<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8555[]' id='answer-id-34171' class='answer   answerof-8555  ' value='34171'   \/><label for='answer-id-34171' id='answer-label-34171' class=' answer'><span>Carnivorous<\/span><\/label><\/div><!-- end 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