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.document-html-preview--word div.Section0{page:Section0;}</style><div class="document-html-preview__page document-html-preview__page--word" data-page="1"><span style="mso-spacerun:'yes';font-family:'Times New Roman';line-height:114%;
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mso-font-kerning:18.0000pt;background:rgb(255,255,0);mso-highlight:rgb(255,255,0)" ><o:p></o:p></h1><h1 align=center style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:center;
line-height:114%" ><span style="mso-spacerun:'yes';font-family:'Times New Roman';line-height:114%;
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mso-font-kerning:18.0000pt;background:rgb(255,255,0);mso-highlight:rgb(255,255,0)" >B&#192;I 41. M&#212;I TR&#431;&#7900;NG V&#192; C&#193;C NH&#194;N T&#7888; SINH TH&#193;I<o:p></o:p></h1><h1 align=center style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:center;
line-height:114%" >SGK K&#7870;T N&#7888;I TRI TH&#7912;C V&#7898;I CU&#7896;C S&#7888;NG<o:p></o:p></h1><h1 align=center style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:center;
line-height:114%" >A. T&#211;M T&#7854;T L&#205; THUY&#7870;T<o:p></o:p></h1><h2 style="margin-top:0.0000pt;margin-bottom:0.0000pt;line-height:114%" >I. M&#244;i tr&#432;&#7901;ng s&#7889;ng<o:p></o:p></h2>- M&#244;i tr&#432;&#7901;ng s&#7889;ng l&#224; n&#417;i s&#7889;ng c&#7911;a sinh v&#7853;t, bao g&#7891;m c&#225;c nh&#226;n t&#7889; xung quanh sinh v&#7853;t, c&#243; &#7843;nh h&#432;&#7903;ng tr&#7921;c ti&#7871;p ho&#7863;c gi&#225;n ti&#7871;p &#273;&#7871;n s&#7921; t&#7891;n t&#7841;i v&#224; ph&#225;t tri&#7875;n c&#7911;a ch&#250;ng.<o:p></o:p>- C&#225;c lo&#7841;i m&#244;i tr&#432;&#7901;ng s&#7889;ng ch&#7911; y&#7871;u bao g&#7891;m: m&#244;i tr&#432;&#7901;ng tr&#234;n c&#7841;n, m&#244;i tr&#432;&#7901;ng n&#432;&#7899;c, m&#244;i tr&#432;&#7901;ng trong &#273;&#7845;t v&#224; m&#244;i tr&#432;&#7901;ng sinh v&#7853;t.<o:p></o:p><h2 style="margin-top:0.0000pt;margin-bottom:0.0000pt;line-height:114%" >II. Nh&#226;n t&#7889; sinh th&#225;i<o:p></o:p></h2>-&nbsp;C&#225;c nh&#226;n t&#7889; trong m&#244;i tr&#432;&#7901;ng &#7843;nh h&#432;&#7903;ng &#273;&#7871;n s&#7921; t&#7891;n t&#7841;i v&#224; ph&#225;t tri&#7875;n c&#7911;a sinh v&#7853;t &#273;&#432;&#7907;c g&#7885;i l&#224; c&#225;c nh&#226;n t&#7889; sinh th&#225;i.<o:p></o:p>-&nbsp;C&#225;c nh&#226;n t&#7889; sinh th&#225;i &#273;&#432;&#7907;c x&#7871;p v&#224;o hai nh&#243;m: nh&#226;n t&#7889; sinh th&#225;i v&#244; sinh – l&#224; c&#225;c y&#7871;u t&#7889; kh&#244;ng s&#7889;ng c&#7911;a m&#244;i tr&#432;&#7901;ng v&#224; nh&#243;m nh&#226;n t&#7889; sinh th&#225;i h&#7919;u sinh – l&#224; c&#225;c y&#7871;u t&#7889; s&#7889;ng c&#7911;a m&#244;i tr&#432;&#7901;ng (bao g&#7891;m con ng&#432;&#7901;i v&#224; c&#225;c sinh v&#7853;t kh&#225;c).<o:p></o:p>-&nbsp;&#7842;nh h&#432;&#7903;ng c&#7911;a c&#225;c nh&#226;n t&#7889; sinh th&#225;i &#273;&#7871;n sinh v&#7853;t:<o:p></o:p>a) &#7842;nh h&#432;&#7903;ng c&#7911;a c&#225;c nh&#226;n t&#7889; v&#244; sinh v&#224; sinh v&#7853;t:<o:p></o:p>-&nbsp;&#193;nh s&#225;ng, nhi&#7879;t &#273;&#7897;... l&#224; nh&#7919;ng nh&#226;n t&#7889; v&#244; sinh c&#243; &#7843;nh h&#432;&#7903;ng th&#432;&#7901;ng xuy&#234;n &#273;&#7871;n sinh v&#7853;t. Th&#7921;c v&#7853;t th&#237;ch nghi kh&#225;c nhau trong c&#225;c &#273;i&#7873;u ki&#7879;n chi&#7871;u s&#225;ng kh&#225;c nhau, &#273;&#432;&#7907;c chia th&#224;nh hai nh&#243;m ch&#7911; y&#7871;u l&#224; c&#226;y &#432;a s&#225;ng v&#224; c&#226;y &#432;a b&#243;ng.&nbsp;<o:p></o:p>-&nbsp;&#193;nh s&#225;ng t&#7841;o &#273;i&#7873;u ki&#7879;n cho &#273;&#7897;ng v&#7853;t nh&#7853;n bi&#7871;t c&#225;c v&#7853;t v&#224; &#273;&#7883;nh h&#432;&#7899;ng di chuy&#7875;n trong kh&#244;ng gian. Nhi&#7879;t &#273;&#7897; m&#244;i tr&#432;&#7901;ng c&#243; &#7843;nh h&#432;&#7903;ng t&#7899;i h&#236;nh th&#225;i, ho&#7841;t &#273;&#7897;ng sinh l&#253; c&#7911;a sinh v&#7853;t.<o:p></o:p>b) &#7842;nh h&#432;&#7903;ng c&#7911;a c&#225;c nh&#226;n t&#7889; h&#7919;u sinh:<o:p></o:p>-&nbsp;M&#7895;i sinh v&#7853;t s&#7889;ng trong m&#244;i tr&#432;&#7901;ng &#273;&#7873;u tr&#7921;c ti&#7871;p ho&#7863;c gi&#225;n ti&#7871;p &#7843;nh h&#432;&#7903;ng t&#7899;i c&#225;c sinh v&#7853;t s&#7889;ng xung quanh.&nbsp;<o:p></o:p><h2 style="margin-top:0.0000pt;margin-bottom:0.0000pt;line-height:114%" >III. Gi&#7899;i h&#7841;n sinh th&#225;i<o:p></o:p></h2>- L&#224; kho&#7843;ng gi&#225; tr&#7883; c&#7911;a m&#7897;t nh&#226;n t&#7889; sinh th&#225;i m&#224; sinh v&#7853;t c&#243; th&#7875; sinh s&#7843;n v&#224; ph&#225;t tri&#7875;n b&#236;nh th&#432;&#7901;ng<o:p></o:p>B. C&#194;U H&#7886;I TRONG B&#192;I H&#7884;C<o:p></o:p>C&#226;u 1. Em h&#227;y x&#225;c &#273;&#7883;nh c&#225;c lo&#7841;i m&#244;i tr&#432;&#7901;ng s&#244;ng &#273;&#432;&#7907;c th&#7875; hi&#7879;n &#7903; h&#236;nh 41.2<o:p></o:p></div></section>

Chuyên Đề KHTN 8 Bài 41 Môi Trường Và Các Nhân Tố Sinh Thái

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