{"id":8308,"date":"2021-11-21T11:42:52","date_gmt":"2021-11-21T04:42:52","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=8308"},"modified":"2021-11-21T12:31:43","modified_gmt":"2021-11-21T05:31:43","slug":"tai-sao-co-mot-so-con-trung-lai-co-the-bien-thanh-con-nhong-con-mot-so-khac-lai-khong","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-co-mot-so-con-trung-lai-co-the-bien-thanh-con-nhong-con-mot-so-khac-lai-khong\/","title":{"rendered":"T\u1ea1i sao c\u00f3 m\u1ed9t s\u1ed1 c\u00f4n tr\u00f9ng l\u1ea1i c\u00f3 th\u1ec3 bi\u1ebfn th\u00e0nh con nh\u1ed9ng, c\u00f2n m\u1ed9t s\u1ed1 kh\u00e1c l\u1ea1i kh\u00f4ng?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 t\u1eebng nu\u00f4i t\u1eb1m \u0111\u1ec1u bi\u1ebft, trong su\u1ed1t cu\u1ed9c \u0111\u1eddi c\u1ee7a con t\u1eb1m s\u1ebd c\u00f3 m\u1ea5y l\u1ea7n thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng. M\u00f9a xu\u00e2n, nh\u1eefng con t\u1eb1m nh\u1ecf b\u00e9 ra \u0111\u1eddi, ch\u00fang kh\u00f4ng ng\u1eebng g\u1eb7m m\u00f3n l\u00e1 d\u00e2u, qua nhi\u1ec1u l\u1ea7n l\u1ed9t x\u00e1c c\u01a1 th\u1ec3 l\u1edbn l\u00ean kh\u00f4ng ng\u1eebng, ch\u00fang ta g\u1ecdi t\u1eb1m \u1edf th\u1eddi k\u00ec n\u00e0y l\u00e0 giai \u0111o\u1ea1n \u1ea5u tr\u00f9ng. Khi \u1ea5u tr\u00f9ng c\u1ee7a con t\u1eb1m \u0111\u1ee7 l\u1edbn, ch\u00fang b\u1eaft \u0111\u1ea7u nh\u1ea3 t\u01a1 k\u1ebft k\u00e9n, c\u01a1 th\u1ec3 bi\u1ebfn th\u00e0nh con nh\u1ed9ng m\u00e0u n\u00e2u. C\u01a1 th\u1ec3 c\u1ee7a con t\u1eb1m tr\u1ed1n trong k\u00e9n l\u1ea1i c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i l\u1ea7n n\u1eefa, tr\u1edf th\u00e0nh con ng\u00e0i ph\u00e1 k\u00e9n chui ra, \u0111\u1ed3ng th\u1eddi sinh ra nhi\u1ec1u tr\u1ee9ng. \u0110\u1ebfn m\u00f9a xu\u00e2n n\u0103m th\u1ee9 hai, tr\u1ee9ng l\u1ea1i n\u1edf ra th\u00e0nh \u1ea5u tr\u00f9ng, b\u1eaft \u0111\u1ea7u m\u1ed9t v\u00f2ng \u0111\u1eddi m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eb1m l\u00e0 th\u00e0nh vi\u00ean trong b\u1ed9 c\u00f4n tr\u00f9ng, c\u1ea3 cu\u1ed9c \u0111\u1eddi ph\u1ea3i tr\u1ea3i qua 4 giai \u0111o\u1ea1n r\u00f5 r\u00e0ng, \u0111\u00f3 ch\u00ednh l\u00e0 \u1ea5u tr\u00f9ng, nh\u1ed9ng, c\u00f4n tr\u00f9ng tr\u01b0\u1edfng th\u00e0nh (con ng\u00e0i) v\u00e0 tr\u1ee9ng. Nh\u01b0ng c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u c\u00f4n tr\u00f9ng c\u1ea3 cu\u1ed9c \u0111\u1eddi l\u1ea1i kh\u00f4ng xu\u1ea5t hi\u1ec7n giai \u0111o\u1ea1n bi\u1ebfn th\u00e0nh nh\u1ed9ng, b\u1edfi v\u00ec nh\u1eefng c\u00f4n tr\u00f9ng kh\u00e1c nhau v\u1ec1 ch\u1ee7ng lo\u1ea1i, c\u00f3 lo\u1ea1i h\u00ecnh bi\u1ebfn ho\u00e1 kh\u00f4ng gi\u1ed1ng nhau. C\u00e1i g\u1ecdi l\u00e0 bi\u1ebfn ho\u00e1, l\u00e0 ch\u1ec9 m\u1ed9t s\u1ed1 \u0111\u1ed9ng v\u1eadt trong qu\u00e1 tr\u00ecnh \u1ea5u th\u1ec3 ph\u00e1t tri\u1ec3n th\u00e0nh c\u01a1 th\u1ec3 tr\u01b0\u1edfng th\u00e0nh, h\u00ecnh d\u00e1ng b\u00ean ngo\u00e0i c\u01a1 th\u1ec3, k\u1ebft c\u1ea5u sinh l\u00ed b\u00ean trong v\u00e0 th\u00f3i quen sinh ho\u1ea1t \u0111\u00e3 x\u1ea3y ra m\u1ed9t lo\u1ea1t s\u1ef1 bi\u1ebfn \u0111\u1ed5i r\u00f5 r\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 \u0111\u1eddi c\u1ee7a con t\u1eb1m tr\u1ea3i qua 4 giai \u0111o\u1ea1n bi\u1ebfn \u0111\u1ed5i, thu\u1ed9c v\u1ec1 lo\u1ea1i c\u00f4n tr\u00f9ng bi\u1ebfn ho\u00e1 ho\u00e0n to\u00e0n. Trong b\u1ed9 c\u00f4n tr\u00f9ng c\u00f2n c\u00f3 kh\u00f4ng \u00edt lo\u00e0i, trong chu k\u00ec s\u1ed1ng ch\u1ec9 c\u00f3 3 giai \u0111o\u1ea1n: tr\u1ee9ng, c\u00f4n tr\u00f9ng non (\u1ea5u tr\u00f9ng) v\u00e0 c\u00f4n tr\u00f9ng tr\u01b0\u1edfng th\u00e0nh, kh\u00f4ng c\u00f3 th\u1eddi k\u00ec nh\u1ed9ng. \u0110\u00f3 l\u00e0 lo\u1ea1i c\u00f4n tr\u00f9ng bi\u1ebfn ho\u00e1 kh\u00f4ng ho\u00e0n to\u00e0n. V\u00ed d\u1ee5 nh\u01b0 ch\u1ea5u ch\u1ea5u h\u1ea7u nh\u01b0 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u r\u1ea5t quen thu\u1ed9c, tr\u1ee9ng c\u1ee7a n\u00f3 n\u1edf ra ch\u00e2u ch\u1ea5u non. H\u00ecnh d\u00e1ng v\u00e0 th\u00f3i quen sinh ho\u1ea1t c\u1ee7a ch\u00e2u ch\u1ea5u non g\u1ea7n gi\u1ed1ng nh\u01b0 ch\u00e2u ch\u1ea5u tr\u01b0\u1edfng th\u00e0nh, \u0111i\u1ec3m kh\u00e1c bi\u1ec7t l\u00e0 c\u01a1 th\u1ec3 nh\u1ecf v\u00e0 c\u00e1nh ph\u00e1t tri\u1ec3n ch\u01b0a ho\u00e0n thi\u1ec7n, c\u00f9ng v\u1edbi nhi\u1ec1u l\u1ea7n l\u1ed9t x\u00e1c sau n\u00e0y, c\u01a1 th\u1ec3 d\u1ea7n d\u1ea7n tr\u01b0\u1edfng th\u00e0nh, c\u00e1nh m\u1ecdc \u0111\u1ea7y \u0111\u1ee7 th\u00ec n\u00f3 s\u1ebd tr\u1edf th\u00e0nh ch\u00e2u ch\u1ea5u tr\u01b0\u1edfng th\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i h\u00ecnh d\u00e1ng ho\u00e0n thi\u1ec7n v\u00e0 h\u00ecnh d\u00e1ng ch\u01b0a ho\u00e0n thi\u1ec7n ra, trong c\u00f4n tr\u00f9ng c\u00f2n c\u00f3 c\u00e1c lo\u1ea1i h\u00ecnh bi\u1ebfn ho\u00e1 nh\u01b0 bi\u1ebfn ho\u00e1 t\u0103ng th\u00eam, kh\u00f4ng bi\u1ebfn ho\u00e1 (bi\u1ebfn ho\u00e1 b\u1ec1 ngo\u00e0i), bi\u1ebfn ho\u00e1 nh\u01b0 c\u0169\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 t\u1eebng nu\u00f4i t\u1eb1m \u0111\u1ec1u bi\u1ebft, trong su\u1ed1t cu\u1ed9c \u0111\u1eddi c\u1ee7a con t\u1eb1m s\u1ebd c\u00f3 m\u1ea5y l\u1ea7n thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng. M\u00f9a xu\u00e2n, nh\u1eefng con t\u1eb1m nh\u1ecf b\u00e9 ra \u0111\u1eddi, ch\u00fang kh\u00f4ng ng\u1eebng g\u1eb7m m\u00f3n l\u00e1 d\u00e2u, qua nhi\u1ec1u l\u1ea7n l\u1ed9t x\u00e1c c\u01a1 th\u1ec3 l\u1edbn l\u00ean kh\u00f4ng ng\u1eebng, ch\u00fang ta g\u1ecdi t\u1eb1m \u1edf [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,10],"tags":[],"class_list":["post-8308","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-sinh-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8308"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8308\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}