{"common":{"save":0,"post_id":"9599","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"10398","post_id":"9599","mon_id":"1159539","chapter_id":"1160145","question":"<p data-pm-slice=\"0 0 []\">Khi sâu b\u1ecd phát tri\u1ec3n m\u1ea1nh, s\u1ed1 l\u01b0\u1ee3ng chim sâu c\u0169ng t\u0103ng theo. Khi s\u1ed1 l\u01b0\u1ee3ng chim sâu t\u0103ng quá nhi\u1ec1u, sâu b\u1ecd b\u1ecb qu\u1ea7n th\u1ec3 chim sâu tiêu di\u1ec7t m\u1ea1nh m\u1ebd h\u01a1n nên s\u1ed1 l\u01b0\u1ee3ng sâu b\u1ecd l\u1ea1i gi\u1ea3m m\u1ea1nh \u0111i. S\u1ef1 h\u1ea1n ch\u1ebf s\u1ed1 l\u01b0\u1ee3ng sâu là hi\u1ec7n t\u01b0\u1ee3ng<\/p>","options":["A. c\u01a1 ch\u1ebf \u0111i\u1ec1u hòa m\u1eadt \u0111\u1ed9.","B. s\u1ef1 cân b\u1eb1ng sinh h\u1ecdc.","C. tr\u1ea1ng thái cân b\u1eb1ng.","D. kh\u1ed1ng ch\u1ebf sinh h\u1ecdc."],"correct":"4","level":"1","hint":"","answer":"<p>\u0110áp án: <strong>D. kh\u1ed1ng ch\u1ebf sinh h\u1ecdc.<\/strong><\/p><p data-end=\"241\" data-start=\"61\">Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c mô t\u1ea3 trong câu là: khi sâu b\u1ecd phát tri\u1ec3n m\u1ea1nh → s\u1ed1 l\u01b0\u1ee3ng chim sâu (k\u1ebb thù t\u1ef1 nhiên c\u1ee7a sâu b\u1ecd) c\u0169ng t\u0103ng → chim sâu tiêu di\u1ec7t sâu b\u1ecd nhi\u1ec1u h\u01a1n → sâu b\u1ecd gi\u1ea3m xu\u1ed1ng.<\/p><p data-end=\"442\" data-start=\"243\">\u0110ây là ví d\u1ee5 \u0111i\u1ec3n hình c\u1ee7a <strong data-end=\"303\" data-start=\"270\">hi\u1ec7n t\u01b0\u1ee3ng kh\u1ed1ng ch\u1ebf sinh h\u1ecdc<\/strong>, t\u1ee9c là <strong data-end=\"359\" data-start=\"312\">vi\u1ec7c s\u1eed d\u1ee5ng sinh v\u1eadt này (k\u1ebb thù t\u1ef1 nhiên)<\/strong> \u0111\u1ec3 <strong data-end=\"426\" data-start=\"363\">ki\u1ec3m soát s\u1ed1 l\u01b0\u1ee3ng sinh v\u1eadt khác (con m\u1ed3i ho\u1eb7c v\u1eadt gây h\u1ea1i)<\/strong> trong t\u1ef1 nhiên.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-07-05 23:19:09","option_type":"txt","len":2},{"id":"10399","post_id":"9599","mon_id":"1159539","chapter_id":"1160145","question":"<p data-pm-slice=\"0 0 []\">Qu\u1ea7n xã sinh v\u1eadt là<\/p>","options":["A. t\u1eadp h\u1ee3p các sinh v\u1eadt cùng loài.","B. t\u1eadp h\u1ee3p các cá th\u1ec3 sinh v\u1eadt khác loài.","C. t\u1eadp h\u1ee3p các qu\u1ea7n th\u1ec3 sinh v\u1eadt khác loài.","D. t\u1eadp h\u1ee3p toàn b\u1ed9 các sinh v\u1eadt trong t\u1ef1 nhiên."],"correct":"3","level":"1","hint":"","answer":"<p>\u0110áp án: <strong>C. t\u1eadp h\u1ee3p các qu\u1ea7n th\u1ec3 sinh v\u1eadt khác loài.<\/strong><\/p><p><strong data-end=\"109\" data-start=\"89\">Qu\u1ea7n xã sinh v\u1eadt<\/strong> là t\u1eadp h\u1ee3p <strong data-end=\"173\" data-start=\"121\">nhi\u1ec1u qu\u1ea7n th\u1ec3 sinh v\u1eadt thu\u1ed9c các loài khác nhau<\/strong>, cùng s\u1ed1ng trong m\u1ed9t <strong data-end=\"218\" data-start=\"195\">không gian xác \u0111\u1ecbnh<\/strong>, vào <strong data-end=\"251\" data-start=\"224\">m\u1ed9t th\u1eddi \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh<\/strong>, và <strong data-end=\"290\" data-start=\"256\">có m\u1ed1i quan h\u1ec7 g\u1eafn bó v\u1edbi nhau<\/strong> (nh\u01b0 quan h\u1ec7 dinh d\u01b0\u1ee1ng, c\u1ea1nh tranh, c\u1ed9ng sinh...).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-07-05 23:19:43","option_type":"txt","len":3},{"id":"10400","post_id":"9599","mon_id":"1159539","chapter_id":"1160145","question":"<p data-pm-slice=\"0 0 []\">Hi\u1ec7n t\u01b0\u1ee3ng kh\u1ed1ng ch\u1ebf sinh h\u1ecdc trong qu\u1ea7n xã d\u1eabn \u0111\u1ebfn h\u1ec7 qu\u1ea3 nào sau \u0111ây?<\/p>","options":["A. \u0110\u1ea3m b\u1ea3o cân b\u1eb1ng sinh thái.","B. Làm cho qu\u1ea7n xã không phát tri\u1ec3n \u0111\u01b0\u1ee3c.","C. Làm m\u1ea5t cân b\u1eb1ng sinh thái.","D. \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u1ed3n t\u1ea1i c\u1ee7a qu\u1ea7n xã."],"correct":"1","level":"1","hint":"","answer":"<p>\u0110áp án: <strong>A. \u0110\u1ea3m b\u1ea3o cân b\u1eb1ng sinh thái.<\/strong><\/p><p data-end=\"265\" data-start=\"74\">Hi\u1ec7n t\u01b0\u1ee3ng <strong data-end=\"107\" data-start=\"85\">kh\u1ed1ng ch\u1ebf sinh h\u1ecdc<\/strong> là khi <strong data-end=\"169\" data-start=\"115\">m\u1ed9t loài sinh v\u1eadt ki\u1ec3m soát s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a loài khác<\/strong>, th\u01b0\u1eddng là thông qua <strong data-end=\"259\" data-start=\"191\">quan h\u1ec7 sinh thái nh\u01b0 v\u1eadt \u0103n th\u1ecbt – con m\u1ed3i, ký sinh, c\u1ea1nh tranh<\/strong>, v.v.<\/p><p data-end=\"407\" data-start=\"267\">→ Nh\u1edd \u0111ó, <strong data-end=\"322\" data-start=\"277\">s\u1ed1 l\u01b0\u1ee3ng các loài không t\u0103ng gi\u1ea3m quá m\u1ee9c<\/strong>, giúp <strong data-end=\"359\" data-start=\"329\">duy trì tr\u1ea1ng thái \u1ed5n \u0111\u1ecbnh<\/strong> trong qu\u1ea7n xã → <strong data-end=\"406\" data-start=\"376\">\u0111\u1ea3m b\u1ea3o cân b\u1eb1ng sinh thái<\/strong>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-07-05 23:20:15","option_type":"txt","len":3}]}