B\u00e0i 1 (trang 154 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y \u0111i\u1ec1n ti\u1ebfp nh\u1eefng n\u1ed9i dung ph\u00f9 h\u1ee3p v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c nh\u00e2n t\u1ed1 v\u1eadt l\u00ed v\u00e0 ho\u00e1 h\u1ecdc t\u1edbi \u0111\u1eddi s\u1ed1ng c\u1ee7a sinh v\u1eadt v\u00e0o \u00f4 tr\u1ed1ng trong b\u1ea3ng 35.1 v\u00e0 l\u1ea5y v\u00ed d\u1ee5 minh ho\u1ea1 nh\u1eefng \u1ea3nh h\u01b0\u1edfng \u0111\u00f3<\/strong>.<\/p>\n

B\u1ea3ng 35.1. \u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 nh\u00e2n t\u1ed1 sinh th\u00e1i v\u1eadt l\u00ed v\u00e0 ho\u00e1 h\u1ecdc t\u1edbi sinh v\u1eadt<\/b><\/p>\n

<\/p>\n

* H\u1ecdc sinh c\u00f3 th\u1ec3 \u0111i\u1ec1n ti\u1ebfp nh\u1eefng nh\u00e2n t\u1ed1 sinh th\u00e1i kh\u00e1c nhau v\u00e0o trong b\u1ea3ng.<\/i><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n\n\n\n\n\n\n\n\n

Nh\u00e2n t\u1ed1 sinh th\u00e1i (\u0111\u01a1n v\u1ecb)<\/th>\n	\u1ea2nh h\u01b0\u1edfng c\u1ee7a nh\u00e2n t\u1ed1 sinh th\u00e1i<\/th>\n	D\u1ee5ng c\u1ee5 \u0111o<\/th>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (o<\/sup>C)<\/td>\n	Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng t\u1edbi trao \u0111\u1ed5i ch\u1ea5t v\u00e0 n\u0103ng l\u01b0\u1ee3ng, kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n c\u1ee7a sinh v\u1eadt.<\/td>\n	Nhi\u1ec7t k\u1ebf<\/td>\n<\/tr>\n
\u00c1nh s\u00e1ng (lux)<\/td>\n	C\u01b0\u1eddng \u0111\u1ed9 chi\u1ebfu s\u00e1ng v\u00e0 th\u00e0nh ph\u1ea7n quang ph\u1ed5 \u1ea3nh h\u01b0\u1edfng t\u1edbi kh\u1ea3 n\u0103ng quang h\u1ee3p c\u1ee7a th\u1ef1c v\u1eadt v\u00e0 kh\u1ea3 n\u0103ng quan s\u00e1t c\u1ee7a \u0111\u1ed9ng v\u1eadt.<\/td>\n	M\u00e1y \u0111o c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 th\u00e0nh ph\u1ea7n quang ph\u1ed5 c\u1ee7a \u00e1nh s\u00e1ng<\/td>\n<\/tr>\n
\u0110\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed (%)<\/td>\n	\u0110\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn t\u1edbi kh\u1ea3 n\u0103ng tho\u00e1t h\u01a1i n\u01b0\u1edbc c\u1ee7a sinh v\u1eadt.<\/td>\n	\u00c2m k\u1ebf<\/td>\n<\/tr>\n
N\u1ed3ng \u0111\u1ed9 c\u00e1c lo\u1ea1i kh\u00ed: O2<\/sub>, CO2<\/sub>, … (%)<\/td>\n	N\u1ed3ng \u0111\u1ed9 O2<\/sub>\u00a0\u1ea3nh h\u01b0\u1edfng t\u1edbi qu\u00e1 tr\u00ecnh h\u00f4 h\u1ea5p c\u1ee7a sinh v\u1eadt. CO2<\/sub>tham gia v\u00e0o qu\u00e1 tr\u00ecnh quang h\u1ee3p c\u1ee7a th\u1ef1c v\u1eadt. Tuy nhi\u00ean, n\u1ed3ng \u0111\u1ed9 CO2<\/sub>\u00a0qu\u00e1 cao th\u01b0\u1eddng g\u00e2y ch\u1ebft \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c lo\u00e0i sinh v\u1eadt.<\/td>\n	M\u00e1y \u0111o n\u1ed3ng \u0111\u1ed9 kh\u00ed ho\u00e0 tan<\/td>\n<\/tr>\n
pH<\/td>\n	\u0110\u1ed9 pH \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u t\u1edbi kh\u1ea3 n\u0103ng h\u00fat kho\u00e1ng c\u1ee7a th\u1ef1c v\u1eadt v\u00e0 do \u0111\u00f3, \u1ea3nh h\u01b0\u1edfng t\u1edbi sinh tr\u01b0\u1edfng c\u1ee7a ch\u00fang.<\/td>\n	Gi\u1ea5y qu\u1ef3 t\u00edm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n B\u00e0i 2 (trang 155 SGK Sinh h\u1ecdc 12):\u00a0Th\u1ebf n\u00e0o l\u00e0 gi\u1edbi h\u1ea1n sinh th\u00e1i? L\u1ea5y v\u00ed d\u1ee5 minh ho\u1ea1 v\u1ec1 gi\u1edbi h\u1ea1n sinh th\u00e1i c\u1ee7a sinh v\u1eadt.<\/strong><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n – Gi\u1edbi h\u1ea1n sinh th\u00e1i l\u00e0 kho\u1ea3ng gi\u00e1 tr\u1ecb x\u00e1c \u0111\u1ecbnh c\u1ee7a m\u1ed9t nh\u00e2n t\u1ed1 sinh th\u00e1i m\u00e0 trong kho\u1ea3ng \u0111\u00f3 sinh v\u1eadt c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n \u1ed5n \u0111\u1ecbnh theo th\u1eddi gian. N\u1eb1m ngo\u00e0i gi\u1edbi h\u1ea1n sinh th\u00e1i, sinh v\u1eadt kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c.<\/p>\n – V\u00ed d\u1ee5:<\/p>\n + C\u00e1 r\u00f4 phi \u1edf n\u01b0\u1edbc ta c\u00f3 gi\u1edbi h\u1ea1n sinh th\u00e1i t\u1eeb 5,6 \u0111\u1ebfn 42o<\/sup>C. Nhi\u1ec7t \u0111\u1ed9 5,6o<\/sup>C l\u00e0 gi\u1edbi h\u1ea1n d\u01b0\u1edbi, 42o<\/sup>C l\u00e0 gi\u1edbi h\u1ea1n tr\u00ean, kho\u1ea3ng thu\u1eadn l\u1ee3i l\u00e0 20 – 35o<\/sup>C.<\/p>\n + Gi\u1edbi h\u1ea1n sinh th\u00e1i c\u1ee7a lo\u00e0i x\u01b0\u01a1ng r\u1ed3ng xa m\u1ea1c: t\u1eeb 22 \u0111\u1ebfn 42 \u0111\u1ed9o<\/sup>C. Gi\u1edbi h\u1ea1n d\u01b0\u1edbi l\u00e0 22o<\/sup>C, gi\u1edbi h\u1ea1n tr\u00ean l\u00e0 42o<\/sup>C, kho\u1ea3ng thu\u1eadn l\u1ee3i l\u00e0 32o<\/sup>C<\/p>\n B\u00e0i 3 (trang 155 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y l\u1ea5y 2 v\u00ed d\u1ee5 v\u1ec1 c\u00e1c \u1ed5 sinh th\u00e1i. N\u00eau \u00fd ngh\u0129a c\u1ee7a vi\u1ec7c ph\u00e2n ho\u00e1 \u1ed5 sinh th\u00e1i trong c\u00e1c v\u00ed d\u1ee5 \u0111\u00f3.<\/strong><\/p>\n L\u1eddi gi\u1ea3i:<\/strong><\/p>\n M\u1ed9t s\u1ed1 v\u00ed d\u1ee5 v\u1ec1 \u1ed5 sinh th\u00e1i:<\/p>\n + Trong m\u1ed9t ao, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 nu\u00f4i k\u1ebft h\u1ee3p nhi\u1ec1u lo\u00e0i c\u00e1 (c\u00e1 tr\u1eafm, c\u00e1 m\u00e8, c\u00e1 r\u00f4 phi, c\u00e1 tr\u00f4i\u2026). V\u00ec m\u1ed7i lo\u00e0i c\u00f3 m\u1ed9t \u1ed5 sinh th\u00e1i ri\u00eang n\u00ean khi nu\u00f4i k\u1ebft h\u1ee3p chung m\u1ed9t ao s\u1ebd gi\u1ea3m m\u1ee9c \u0111\u1ed9 c\u1ea1nh tranh gay g\u1eaft v\u1edbi nhau. Nu\u00f4i chung nhi\u1ec1u lo\u00e0i c\u00e1 kh\u00e1c nhau nh\u01b0 tr\u00ean s\u1ebd t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c ngu\u1ed3n th\u1ee9c \u0103n trong thi\u00ean nhi\u00ean v\u00e0 kh\u00f4ng gian v\u00f9ng n\u01b0\u1edbc, do \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u0103ng su\u1ea5t cao.<\/p>\n + Gi\u1edbi h\u1ea1n sinh th\u00e1i \u00e1nh s\u00e1ng c\u1ee7a m\u1ed7i lo\u00e0i c\u00e2y l\u00e0 kh\u00e1c nhau. M\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y c\u00f3 t\u00e1n l\u00e1 v\u01b0\u01a1n l\u00ean cao thu nh\u1eadn nhi\u1ec1u \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi, m\u1ed9t s\u1ed1 lo\u00e0i l\u1ea1i \u01b0a s\u1ed1ng d\u01b0\u1edbi t\u00e1n c\u1ee7a l\u00e1 c\u00e2y kh\u00e1c, h\u00ecnh th\u00e0nh n\u00ean c\u00e1c \u1ed5 sinh th\u00e1i v\u1ec1 t\u1ea7ng c\u00e2y trong r\u1eebng.<\/p>\n + K\u00edch th\u01b0\u1edbc th\u1ee9c \u0103n, lo\u1ea1i th\u1ee9c \u0103n, h\u00ecnh th\u1ee9c b\u1eaft m\u1ed3i\u2026 c\u1ee7a m\u1ed7i lo\u00e0i t\u1ea1o n\u00ean c\u00e1c \u1ed5 sinh th\u00e1i v\u1ec1 dinh d\u01b0\u1ee1ng. V\u00ed d\u1ee5, chim \u0103n s\u00e2u v\u00e0 chim \u0103n h\u1ea1t c\u00e2y, m\u1eb7c d\u00f9 ch\u00fang c\u00f3 c\u00f9ng n\u01a1i nh\u01b0ng \u1edf nh\u1eefng n\u01a1i thu\u1ed9c hai \u1ed5 sinh th\u00e1i kh\u00e1c nhau.<\/p>\n B\u00e0i 4 (trang 155 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y \u0111i\u1ec1n ti\u1ebfp v\u00e0o b\u1ea3ng 35.2 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ef1c v\u1eadt do t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng v\u00e0 \u00fd ngh\u0129a th\u00edch nghi c\u1ee7a c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3.<\/strong><\/p>\n B\u1ea3ng 35.2. T\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng t\u1edbi th\u1ef1c v\u1eadt<\/b><\/p>\n\n\n\n\n\n\n\n T\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng<\/th>\n \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ef1c v\u1eadt *<\/th>\n \u00dd ngh\u0129a th\u00edch nghi c\u1ee7a \u0111\u1eb7c \u0111i\u1ec3m<\/th>\n<\/tr>\n \u00c1nh s\u00e1ng m\u1ea1nh, n\u01a1i c\u00f3 nhi\u1ec1u c\u00e2y g\u1ed7 m\u1ecdc d\u00e0y \u0111\u1eb7c<\/td>\n <\/td>\n <\/td>\n<\/tr>\n \u00c1nh s\u00e1ng y\u1ebfu, \u1edf d\u01b0\u1edbi b\u00f3ng c\u00e2y kh\u00e1c<\/td>\n <\/td>\n <\/td>\n<\/tr>\n \u00c1nh s\u00e1ng chi\u1ebfu nhi\u1ec1u v\u1ec1 m\u1ed9t ph\u00eda c\u1ee7a c\u00e2y<\/td>\n <\/td>\n <\/td>\n<\/tr>\n C\u00e2y m\u1ecdc trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng d\u01b0\u1edbi \u0111\u00e1y h\u1ed3, ao<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n * Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ef1c v\u1eadt v\u1ec1 h\u00ecnh th\u00e1i l\u00e1, th\u00e2n; c\u00e1ch x\u1ebfp l\u00e1 tr\u00ean c\u00e2y\u2026; hi\u1ec7n t\u01b0\u1ee3ng t\u1ec9a th\u01b0a t\u1ef1 nhi\u00ean.<\/i><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n B\u1ea3ng 35.2. T\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng t\u1edbi th\u1ef1c v\u1eadt<\/b><\/p>\n\n\n\n\n\n\n\n T\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng<\/th>\n \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ef1c v\u1eadt *<\/th>\n \u00dd ngh\u0129a th\u00edch nghi c\u1ee7a \u0111\u1eb7c \u0111i\u1ec3m<\/th>\n<\/tr>\n \u00c1nh s\u00e1ng m\u1ea1nh, n\u01a1i c\u00f3 nhi\u1ec1u c\u00e2y g\u1ed7 m\u1ecdc d\u00e0y \u0111\u1eb7c<\/td>\n – C\u00e2y \u01b0a s\u00e1ng. Th\u00e2n cao th\u1eb3ng, c\u00e0nh ch\u1ec9 t\u1eadp trung \u1edf ph\u1ea7n ng\u1ecdn. L\u00e1 v\u00e0 c\u00e0nh \u1edf ph\u00eda d\u01b0\u1edbi s\u1edbm r\u1ee5ng. L\u00e1 c\u1eady nh\u1ecf, m\u00e0u nh\u1ea1t, m\u1eb7t tr\u00ean c\u1ee7a l\u00e1 c\u00f3 l\u1edbp cutin d\u00e0y, b\u00f3ng, m\u00f4 gi\u1eadu ph\u00e1t tri\u1ec3n. L\u00e1 c\u00e2y x\u1ebfp nghi\u00eang so v\u1edbi m\u1eb7t \u0111\u1ea5t.<\/p>\n – C\u00e2y \u01b0a s\u00e1ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 quang h\u1ee3p v\u00e0 h\u00f4 h\u1ea5p cao d\u01b0\u1edbi \u00e1nh s\u00e1ng m\u1ea1nh.<\/td>\n C\u00e2y th\u00edch nghi theo h\u01b0\u1edfng gi\u1ea3m m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u00e1nh s\u00e1ng m\u1ea1nh, l\u00e1 c\u00e2y kh\u00f4ng b\u1ecb \u0111\u1ed1t n\u00f3ng qu\u00e1 m\u1ee9c v\u00e0 m\u1ea5t n\u01b0\u1edbc.<\/td>\n<\/tr>\n \u00c1nh s\u00e1ng y\u1ebfu, \u1edf d\u01b0\u1edbi b\u00f3ng c\u00e2y kh\u00e1c<\/td>\n – C\u00e2y \u01b0a b\u00f3ng \u1edf d\u01b0\u1edbi t\u00e1n c\u00e1c c\u00e2y kh\u00e1c. Th\u00e2n nh\u1ecf. L\u00e1 to, m\u1ecfng, m\u00e0u s\u1eabm, m\u00f4 gi\u1eadu k\u00e9m ph\u00e1t tri\u1ec3n. C\u00e1c l\u00e1 x\u1ebfp xen k\u1ebd nhau v\u00e0 n\u1eb3m ngang so v\u1edbi m\u1eb7t \u0111\u1ea5t.<\/p>\n – C\u00e2y \u01b0a b\u00f3ng c\u00f3 kh\u1ea3 n\u0103ng quang h\u1ee3p d\u01b0\u1edbi \u00e1nh s\u00e1ng y\u1ebfu, khi \u0111\u00f3 c\u01b0\u1eddng \u0111\u1ed9 h\u00f4 h\u1ea5p c\u1ee7a c\u00e2y y\u1ebfu.<\/td>\n Nh\u1edd c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i th\u00edch nghi v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng y\u1ebfu n\u00ean c\u00e2y thu nh\u1eadn \u0111\u1ee7 \u00e1nh s\u00e1ng cho quang h\u1ee3p.<\/td>\n<\/tr>\n \u00c1nh s\u00e1ng chi\u1ebfu nhi\u1ec1u v\u1ec1 m\u1ed9t ph\u00eda c\u1ee7a c\u00e2y<\/td>\n C\u00e2y c\u00f3 t\u00ednh h\u01b0\u1edbng s\u00e1ng, th\u00e2n c\u00e2y cong v\u1ec1 ph\u00eda c\u00f3 nhi\u1ec1u \u00e1nh s\u00e1ng.<\/td>\n T\u00e1n l\u00e1 ti\u1ebfp nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u \u00e1nh s\u00e1ng.<\/td>\n<\/tr>\n C\u00e2y m\u1ecdc trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng d\u01b0\u1edbi \u0111\u00e1y h\u1ed3, ao<\/td>\n L\u00e1 c\u00e2y kh\u00f4ng c\u00f3 m\u00f4 gi\u1eadu ho\u1eb7c m\u00f4 gi\u1eadu k\u00e9m ph\u00e1t tri\u1ec3n, di\u1ec7p l\u1ee5c ph\u00e2n b\u1ed1 c\u1ea3 trong bi\u1ec3u b\u00ec l\u00e1 v\u00e0 c\u00f3 \u0111\u1ec1u \u1edf hai m\u1eb7t l\u00e1.<\/td>\n T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng thu nh\u1eadn \u00e1nh s\u00e1ng cho quang h\u1ee3p.<\/p>\n  <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n  <\/p>\n B\u00e0i 5 (trang 155 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y gi\u1ea3i th\u00edch v\u00ec sao \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t (thu\u1ed9c c\u00f9ng lo\u00e0i hay lo\u00e0i c\u00f3 quan h\u1ec7 h\u1ecd h\u00e0ng g\u1ea7n nhau) s\u1ed1ng \u1edf v\u00f9ng \u00f4n \u0111\u1edbi (n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p) c\u00f3 k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 l\u1edbn h\u01a1n k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 c\u1ee7a \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi \u1ea5m \u00e1p, \u0111\u1ed3ng th\u1eddi c\u00e1c \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t v\u00f9ng \u00f4n \u0111\u1edbi c\u00f3 tai, \u0111u\u00f4i, chi,\u2026 nh\u1ecf h\u01a1n tai, \u0111u\u00f4i, chi c\u1ee7a \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t v\u00f9ng nhi\u1ec7t \u0111\u1edbi. L\u1ea5y v\u00ed d\u1ee5 minh ho\u1ea1 cho quy t\u1eafc v\u1ec1 k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 v\u00e0 quy t\u1eafc v\u1ec1 k\u00edch th\u01b0\u1edbc c\u00e1c b\u1ed9 ph\u1eadn chi, tai, \u0111u\u00f4i,\u2026 c\u1ee7a c\u01a1 th\u1ec3.<\/strong><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n – \u0110\u1ed1i v\u1edbi \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t (v\u00ed d\u1ee5: g\u1ea5u, c\u00e1o, h\u01b0\u01a1u, th\u1ecf,\u2026) s\u1ed1ng \u1edf v\u00f9ng \u00f4n \u0111\u1edbi (l\u1ea1nh) c\u00f3 k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 l\u1edbn s\u1ebd c\u00f3 t\u1ec9 l\u1ec7 S\/V nh\u1ecf l\u00e0m gi\u1ea3m di\u1ec7n t\u00edch to\u1ea3 nhi\u1ec7t c\u1ee7a c\u01a1 th\u1ec3. Ng\u01b0\u1ee3c l\u1ea1i, \u0111\u1ed9ng v\u1eadt s\u1ed1ng \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi (n\u00f3ng) c\u00f3 k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 nh\u1ecf s\u1ebd c\u00f3 t\u1ec9 l\u1ec7 S\/V l\u1edbn l\u00e0m t\u0103ng di\u1ec7n t\u00edch to\u1ea3 nhi\u1ec7t c\u1ee7a c\u01a1 th\u1ec3.<\/p>\n – \u0110\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t v\u00f9ng nhi\u1ec7t \u0111\u1edbi n\u00f3ng c\u00f3 tai, \u0111u\u00f4i, chi,\u2026 l\u1edbn h\u01a1n \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t \u1edf v\u00f9ng \u00f4n \u0111\u1edbi c\u00f3 t\u00e1c d\u1ee5ng t\u0103ng c\u01b0\u1eddng di\u1ec7n t\u00edch t\u1ecfa nhi\u1ec7t c\u1ee7a c\u01a1 th\u1ec3. V\u00ed d\u1ee5: Th\u1ecf \u1edf v\u00f9ng \u00f4n \u0111\u1edbi c\u00f3 tai, \u0111u\u00f4i nh\u1ecf h\u01a1n tai v\u00e0 \u0111u\u00f4i c\u1ee7a th\u1ecf \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi.<\/p>\n – C\u1ea3 hai quy t\u1eafc tr\u00ean \u0111\u1ec1u cho th\u1ea5y \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t gi\u1eef nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 \u1ed5n \u0111\u1ecbnh theo h\u01b0\u1edbng th\u00edch nghi: s\u1ed1ng \u1edf v\u00f9ng \u00f4n \u0111\u1edbi c\u00f3 nhi\u1ec7t \u0111\u1ed9 l\u1ea1nh, \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t c\u00f3 t\u1ec9 l\u1ec7 S\/V nh\u1ecf c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf kh\u1ea3 n\u0103ng m\u1ea5t nhi\u1ec7t c\u1ee7a c\u01a1 th\u1ec3. S\u1ed1ng \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi n\u00f3ng, \u0111\u1ed9ng v\u1eadt h\u1eb1ng nhi\u1ec7t c\u00f3 t\u1ec9 l\u1ec7 S\/V l\u1edbn l\u00e0m t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng to\u1ea3 nhi\u1ec7t c\u01a1 th\u1ec3.<\/p>\n  <\/p>\n <\/div>\n  <\/p>\n  <\/p>\n","protected":false},"excerpt":{"rendered":" B\u00e0i 1 (trang 154 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y \u0111i\u1ec1n ti\u1ebfp nh\u1eefng n\u1ed9i dung ph\u00f9 h\u1ee3p v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c nh\u00e2n t\u1ed1 v\u1eadt l\u00ed v\u00e0 ho\u00e1 h\u1ecdc t\u1edbi \u0111\u1eddi s\u1ed1ng c\u1ee7a sinh v\u1eadt v\u00e0o \u00f4 tr\u1ed1ng trong b\u1ea3ng 35.1 v\u00e0 l\u1ea5y v\u00ed d\u1ee5 minh ho\u1ea1 nh\u1eefng \u1ea3nh h\u01b0\u1edfng \u0111\u00f3. B\u1ea3ng 35.1. \u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t […]<\/p>\n","protected":false},"author":3,"featured_media":22541,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1307],"tags":[1372,1373],"yoast_head":"\n