THIET KE BAI GIANG • NANG CAO TAP HAI n i NHA XUAT BAN HA TRAN KHANH PHirCJNG THIET KE BAI GIANG sum HQC u NilNGQIO-TdPHfll NHA XUAT BAN HA N I Chuong IV UNG DUNG Dl TRUYEN HOC Bai 22 CHON GIONG VAT NUOI VA CAY TRONG I MUC TIEU Kien thurc • HS biet duoc nguon vat lieu cho chon giong t\i tu nhien va nhan tao • HS biet dugc vai tro eia bien di to hgp chgn giong vat nuoi cay • Nang cao kl nang phan tfch hien tugng de tim hieu ban chat cua su viec qua chgn giong mdi tir nguon bien di to hgp KT nang • Phan tfch thong tin de nam bat kien thiic • Khai quat hoa kien thiic • Van dung kien thiic, giai thfch thuc te II CHUAN B! • Tranh anh ve giong vat nuoi, cay • Tu Ueu v6 chgn giong vat nuoi, cay • Phieu hgc tap Gidi THieu v£ NGU6N GEN Noi dung Khdi dau Ke't qua Vfdu Nguon gen tl/nhien TI; NHIEN VA NHAN TAO Nguon gen nhan tao III HOAT DONG DAY - HOC Kiem tra • Ngi dung dinh luat Hacdi Venbec, cho vf du minh hoa • Khi a trang thai can bang di truyen thi cau tnic di truyen cua quan the nhu the nao? • HS lam bai tap 5, SGK trang 87 Trong tam • Bien di to hgp la nguon nguyen lieu quan trgng cho chgn gidng • Bien di to hgp la nguyen nhan ciia su da dang ve kieu gen, phong phu ve kieu hinh ciia gidng Bai mdi • GV gidi thieu ngi dung ciia chuong IV va gidi han kien thiic ciia bai hgc • GV gidi thieu budc quy trinh chgn gidng vM nuoi, cay la: tao nguon nguyen lieu, chgn lgc, danh gia chat lugng gidng va dua san xuat dai tra Hogt dpng I GIC5I THIEU VE NGUON GEN T U N H I E N VA NHAN TAG Muc tieu: • HS biet each tao dugc nguon gen • HS biet lien he thuc te Hogt dpng cda GV - GV dan dat: + Mudn chgn lgc cd ket qua c&i cd ngudn vat Ueu + Ngudn vat lieu tu nhien chua du de chgn lgc dat hieu qua, nen ngudi da chu dgng tang ngudn vat lieu nhd gay dot bien, lai tao —GV neu yeu cau: + Nghien ciiu SGK trang 88 muc I Hogt dpng cda HS Ngi dung Hogt dpng cua GV Hogt dpng cda HS + Hoan phieu hgc tap "Gidi thieu vt ngudn gen tu nhien va ngudn gen nhan tao" Ndi dung - HS hoat dgng ca nhan nghien ciiu thong tin nhan biet kien thiic - HS hoat dgng nhdm + Van dung kie'n thiic, ket hgp tu lieu va thuc te + Thao luan nhdm —> thdng nha't y kien -> ghi phieu hgc tap - GV nhan xet va thong + Dai dien nhdm trinh bay —> ldp nhan xet bao dap an - HS theo ddi -> tu siia Dap an phieu hgc tap chQa Noi dung Nguon gen tu nhien Nguon gen nhan tao Khdi dau Thu thap vat lieu tCr thien nhiSn, tif cac dja phuong - Gay dot bie'n de tao nhigu dang l van dung kie'n thiic vi phuong phap lai, dung so dd + Ddng thuan cd kieu gen dac diem kieu gen ddng hgp va di hgp de nhan nhu the nao? biet kie'n thiic - Thao luan nhanh nhdm -^ thdng nha't y kien - Yeu cau neu dugc: + Sur dung phep lai: Tu thu phan, giao phdi gin (F1,F3) + Ddng thuan d F4 cd kieu gen AAbbCC, F2 cd kieu gen AABBcc, AAbbcc - Dai dien HS trinh bay —> ldp nhan xet GV nhan xet, danh gia va y6u cau HS neu y nghia ciia ddng thuin chung - HS van dung kien thiic tra ldi: Ddng thuin cd kieu gen ddng nha't, di kiem tra dugc bieu hien cua gen - Cac td hgp gen mdi - GV nhan xet, danh gia, ludn hinh nhd sinh giiip HS hoan thi6n kien san hiiu tfnh thiic - Ca the mang td hgp gen mdi dugc tu thu pha'n hoac giao phdi gin de tao ddng thuan - Lai cac td hgp ddng thuan va chgn lgc td hgp gen mong mudn Hogt dpng cua GV - GV hdi: + Uu the lai la gi? Cho vf du ve uu the lai Hogt dpng cua HS - HS van dung kien thirc Tao gidng lai co uu sinh hgc tra ldi the lai cao - Yeu cau neu dugc: + Uu the lai the hien ro + Fl cd siic sdng cao hon nha't trudng hgp bd me nao? + Vf du: Bap ngd cua co + Uu the lai vugt trgi so the lai Fl dai hon, to hon vdi bd me thi hien nhu va sd hat nhidu hon bap the nao? ciia cay ngd tu thu pha'n rat nhieu + Uu the lai rd lai giiia cac ddng thuan cd kieu gen khac + Kieu hinh Fl ldn hon so vdi bd me, dac biet la nang xuat cao hon nhieu - Dai dien HS tra ldi -> ldp nhan xet - GV nhan xet, danh gia - GV neu va'n d6: - HS nghien ciiu SGK trang 89 muc 11(2) + Hien tugng uu' the lai dugc giai thfch nhu the - HS van dung kien thiic nao? sinh hgc tra ldi + Lam the nao de tao + Tfnh trang sd lugng duoc uu the lai? nhieu gen trgi quy dinh + Dang bd me thuan chung nhieu gen lan d trang thai ddng hgp bieu hien tfnh trang xau + Khi cho lai ca the cd kieu gen trdi va kieu gen lan chi cd gen trgi mdi duoc bieu hien o F l 10 Ndi dung Hogt dpng cda GV Hogt dpng cda HS + Chi cac dac diem dia chat, khf hau, sinh vat dien hinh cua cac dai va cac ki cung nhu mdi tuong quan giiia didu kien dia chdt, khf hau vdi sinh vat - HS boat ddng cd nhan vdi SGK Npi dung - HS cd the tdm tdt dugc kie'n thiic: + Dai Thai cd: Trai ddt dang hinh thanh, nhieu cdu tao niii va phun lua dii' ddi, cd sinh vat nhan so + Dai nguydn sinh: tiep tuc tao niii, sinh vat nhan thuc cd mat ddng vat va thuc vat, cd su tfch luy oxi hoat ddng cua thue vat + Dai cd sinh: Phan bd dai luc, ddt liin md rdng, khf hau phan hod -> thue vat, ddng vat phong phii Ddng vat va thuc vat len can hang loat: Quyet trdn, nheri ludng cu ddu ciing la loai tien phong len can + Dai Trung sinh: Dai luc chidm uu the, khf hau khd, dm ap -^ bd sat phat trien cue thinh, cay hat trdn ngu tri Cud'i dai bd sat bi tuyet diet, xudt hien thuc vat cd hoa, chim thii xudt hien + Dai Tan sinh: Dai luc gdn gidng ngdy nay, cay cd hoa ngu tri, phan hod ldp chim, thii, cdn triing Dac biet su xudt hien loai ngudi 243 Hogt dpng cda GV Hogt dpng cda HS Npi dung - GV nhan xet, ddnh gid - Dai dien HS ldn lugt tra - Ddp an bang 44 SGK va bd sung tu lieu ldi -> ldp nhan xet bd trang 182, 183 sung Kiem tra danh gia • GV cd the sir dung so dd vi cdc dai dia chat vdi cac d gia'y cd ndi dung ve sinh vat hay bien cd dia chat sau dd de HS lua chgn va gdn cho phu hgp the hien nhiing dac diem ciia dai nao dd • GV cd the cho HS trd ldi cau hdi trdc nghiem: Cdu 1: Phit bieu ndo sau day la khdng diing vd hod thach: a) Hod thach la di tfch cua cdc sinh vat da tumg sinh sdng cdc thdi dai dia chat dugc Imi giii cdc ldp ddt da cua vd trdi b) Hod thach cd y nghTa to ldn nghidn ciiu sinh hgc va dia chdt hgc< c) Can cii vdo boa thach cdc ldp dat dd cd the suy nhiing dau tranh sinh tdn va diet vong ciia sinh vat d) Hoa thach cung la ddn lieu qui nghien ciiu lich sir vd trai ddt Cdu 2: Ngudi ta dua vdo dau de xdc dinh tudi tuong dd'i cua cdc ldp dat a) Dua vdo thdi gian ldng dgng ciia cac ldp trdm tfch b) Dua vao cd vat cd cdc ldp ddt e) Dua vao xdc chdt cua ddng, thuc vat chdn viii ddt d) Dua vao hod thach cd cac ldp da't Cdu 3: Ngudi ta dua vao dau de nghidn ciiu Iich sii phat tridn ciia sinh vat a) Cdc di tfch lich sit cd cac ldp da't da b) Dac diem cdu tao hinh thdi va sinh If cua sinh vdt c) Cac hod thach d) Ca a, b, c Cdu 4: Thuc vat cd hoa xudt hien vao dai nao? a) Dai Tan sinh c) Dai Trung sinh b) Dai Cd sinh d) Dai Thdi cd Cdu 5: Thuc vat va ddng vat chuyen ldn can tir nao? a) Ki Cambri, dai Co sinh b) Ki Xilua, dai Cd sinh c) Ki Pemi, dai Co sinh d) Ki Devdn, dai Co sinh Dan • Hgc bai, tra ldi cau hdi SGK • Tim hieu, suu tdm tu lieu ve phat sinh loai ngudi 244 Bdi 45 sy PHAT SINH LOAI NGUbl I MUC TIEU Kien thurc • HS liet ke dugc giai doan phdt sinh va tien hod ciia loai ngudi: Giai doan vugn ngudi hod thach, ngudi vugn hod thach (ngudi tci cd), ngudi cd Homo, ngudi hien dai • HS liet ke cdc nhan to sinh hgc va nhan to xa hdi tdc ddng den qua trinh phat sinh va tidn hod ciia loai ngudi Giai thfch dugc tai nhan to van hoa ddng vai trd quyet dinh • Nang cao nhan thiic dung ddn va khoa hgc vi ngudn gdc phdt sinh va tidn hod ciia loai ngudi KTnang • Quan sdt phan tfch • Lap bang so sdnh, khdi quat kie'n thiic • Phdt tridn tu logic bien chiing II CHUAN B! • Tranh hinh SGK phdng to • Hinh 45 SGV trang 214 phdng to • Tranh hinh lidn quan bai hgc • GV dgc kT thdng tin bd sung d SGV • Thdng tin bd sung: Vai trd cua cac nhan td sinh hgc va nhan td xa hdi sir phat sinh lodi ngudi la mdt budc phdt trien quan trgng vi chdt lugng nhung nd khdng xay mdt each dot ngdt ma la qua trinh lich sit Hinh tu thd di thang, phdn hod chiic nang giiia cae chi, phdt tridn hop sg va bd nao, phdt sinh tie'ng ndi la ke't qua ciia qud trinh tidn hod ldn, ddn tdi su xuat hien loai ngudi Homo Sapies Sau dd qua trinh tie'n boa nhd tie'p tuc diin pham vi ciia loai Mac ddu su phdt sinh lodi ngudi ddnh ddu su ddi mdt hinh thiic van ddng mdi cua vat chdt la van ddng xa hdi nhung nd khdng loai bd tdc dung cua CLTN ma chi lam bidn ddi chidu hudng va gidi ban miic tac ddng cua CLTN Ap luc ciia CLTN cdc qudn the ngudi vdn ddn tdi su loai bd nhiing ca the kem thfch nghi, bao tdn nhimg ca the thfch nghi hon 245 Trudc ma trinh kinh td xa hdi cdn thap, ti le tir vong trudc tudi trudng cd the 50% ddi kem va benh tat Theo Honden, 5000 nam qua hudng can ban ciia CLTN cac qudn the ngudi la bao tdn nhiing kiiu gen chd'ng dugc benh tat, quy dinh nhiing tfnh midn dich bam sinh Tdm lai, cdc qudn thd ngudi dang thudng xuydn didn qua trinh tien hod nhd Ngay khoa hgc dang ed gdng dp dung nhiing bien phap cd hieu qua de kiem soat qua trinh tidn hod nhd, lam cho nd phat trien theo hudng cdn thiet Con ngudi khdng nhiing dang chi phdi su phat tridn cua nhung the he hien ma ca cua nhiing thd he mai sau Giai thfch loai ngudi khdng the bie'n ddi mdt loai khac, Mayro (1950 - 1968) cho rdng vi loai khdc cd kha nang thfch nghi vdi mgi dieu kien sinh thdi rdt da dang, khdng phu thudc vao hoan canh tu nhien, mat khac ciing vdi sir phdt trien cdc phuong tien giao thdng ngudi cd the vugt qua chudng ngai dia If nen khdng cd dieu kien dd su each li dia If keo dai ddn tdi su cdch li sinh hgc Loai ngudi la mdt lodi da kieu, phan bd khdp the gidi, dd dang tidp tuc diin nhiing qua trinh tidn hoa nhd, nhung khdng cd kha nang diin qua trinh tidn hoa ldn Phidu hgc tap TlM H l i u CAC GIAI DOAN CHfNH TRONG QUA TRiNH PHAT SINH LOAl NGLfdl Giai doan Noi dung VUdn ngUdi hoa thach NgUdi vUcfn hoa thach NgUdi CO Homo * Thdi gian va noi phat hidn * Tudi dia chat *Oac '1 em cau tao - * Cdng eu va Idi sdng III HOAT DONG DAY - HOC Kiem tra • Tai hod thach la bdng chung cua tidn hod? • Tfnh tudi ciia hod thach dua vao can cii nao? 246 NgUdi hien dai Homo (Sapiens) Trong tam • Lodi ngudi cd cd ngudn gdc ddng vdt, chung vdi vugn ngudi, trai qua giai doan • Cdc nhan td chi phdi qud trinh phdt sinh va tien hod ciia loai ngudi, trOng dd nhan td van hod xa hdi cd tfnh quyet dinh Bai mdi • GV ed the neu van di: Em hieu biet gi vi ngudn gdc lodi ngudi? • GV dua vao y kidn cua HS ddn ddt vao bdi hgc Hogt dpng TIM HIEU NHUNG GIAI DOAN CHINH TRONG QUA TRINH P H A T SINH L O A I NGUOI Muc tieu: • HS liet ke va phan tfch dac diem ciia giai doan cua qua trinh phdt sinh loai ngudi • HS bidt lien he vd phat sinh loai ngudi vdi viing chau A dac biet la d Vidt Nam Hogt dpng cda GV Hogt dpng cda HS Npi dung - GV neu yeu cdu: + Nghien ciiu tranh hinh - HS boat ddng nhdm: SGK vd SGV phdng to + Cd nhan phat hien kie'n + Nghien ciiu thdng tin thiic tir viec nghien ciiu thdng tin tranh hinh SGK trang 185, 186 + Hodn eac ndi + HS trao ddi nhdm, thdng nhdt y kien dung cua phieu hgc tap —>• ghi phidu hgc tap - HS neu dugc net dac trung vd: + Tu the diing thang + Chiiu cao co the + Hoat ddng cua ddi tay + Hop sg + Dung lira, giu lira 247 Hogt dpng cda GV Npi dung Hogt dpng cda HS + Tie'ng ndi + Tdn giao + Phan hod xa hdi - GV chiia bdi bdng cdch - Dai dien cdc nhdm ghi ke phie'u hgc tap len ke't qua theo timg giai bang, cac nhdm ghi kdt doan -> ldp theo ddi nhan xet bd sung qua - GV nhan xet, danh gia - Cac nhdm theo ddi ddp va chie'u dap an len bang an va tu sira chiia Dap an phidu hgc tap Giai doan Noi dung * Thdi gian va noi phat hien VUtfn ngUdi hoa thach (Driepitec) - Nam 1927 chau Phi d NgUdi vUdn hoa thach (6xtralopitec) - Nam 1924 d nam Phi, ddng Phi NgUdi CO Homo - Homo Habilis tim thay d Tanzania nam 1961 NgUdi hien dai Homo Sapiens, - Cromanhon ci Phap nam 1868 - Homo Erectus tim thay d chau Phi, chau A va chau Dai duong nam 1891, 1927, 1970 - Neandeetan phat hien nam 1856 d Diic va chau a, Au, Phi * Tudi dia chat - Sdng each day 18tri6unam - Sdng each day - ^ trieu nam - Sdng each day 35000 - > trieu nam - Sdng each day 35000 - ^ 300000 nam * Dac dilm eau tao - Cd dudi, mat ngan, hdp sp kha Idn - C a o 120-140cm hdp sp 450 ->750 em^ nang 20 - > 40 - Cao tCr 1,5 -^ 1,7m, hdp sp 600-> lOOOcm'-^ 1400em' - Cao 1,8m, nang 70l ldp nhan xet nao? 251 Hogt dpng cda GV Hogt dpng cda HS - GV nhan xet, danh gid va sir dung thdng tin bd sung d muc II de giang giai ve vai trd eiia nhan td sinh hgc Npi dung - Nhan td sinh hgc (bien di, di truyen, CLTN) ddng vai trd chii dao giai doan tien hoa cua ngudi vugn hod thach va ngudi cd - Bidn ddi chu ye'u: + Dang dung thang bdng hai chan + Tay giai phdng -^ che tao va sii dung cdng cu lao ddng + Bd nao phdt tridn, cd tu - HS van dung hieu biet b) Nhdn to xd hgi xa hdi va cdc kie'n thiic sinh hgc suy luan rdi trao ddi nhdm thdng nhdt y kidn - HS cd the neu dugc: + Ndu chi cd nhan to sinh hgc chi phdi thi ngudi cung ehi nhu cac sinh vat khdc + Nhan to van hod xa hdi quyet dinh vi cd tie'ng ndi, van hod, khoa hgc thi ngudi mdi khac ban the gidi ddng vat - GV ndu vdn dd: + Ndu chi cd tdc ddng cua nhan to sinh hgc thi cd dugc su tidn hod ngudi hien khdng? + Vl nhan td van hod xa hdi trd nhan to quyet dinh cua su phdt trien eua ngudi vd xa hdi loai ngudi? + Ngay nhan td CLTN cd cdn chi phdi su phat tridn loai ngudi hay khdng? Neu khdng thi su phdt trien ciia loai ngudi dua vao dau? + CLTN cdn tdc ddng nhung chi la thii ydu + Xa hdi loai ngudi phat trien la tien bd ciia khoa hgc kT thuat, van hod da sdc mdu 252 Hogt dpng cda GV Npi dung Hogt dpng cua HS - GV nhan xet, ddnh gid - Dai dien HS tra ldi -^ va sir dung thdng tin bd ldp nhan xet sung giang giai vai trd quyet dinh ciia nhan to xa - HS khdi quat kien thiic hdi sir phat trien ciia loai ngudi - GV khang djnh: Loai ngudi khdng bien ddi mdt loai nao khac nhung xa hdi loai ngudi vdn khdng ngimg phat trien - HS cd the minh boa: + Con ngudi nude xay thuy - Nhan td xa hdi chi phdi neu vi du su hlnh thdnh nhidu dac didm ngudi khdc vdi ddng vat, dd la: ngan ddng + Lao ddng cd mue dich dien cd phuong + Cd ngdn ngii giao tiep + Con ngudi tien dd bao ve trudc bidn + Sdng xa hdi cd ddi cua mdi trudng nhu luat phdp, cd ddi sdng van hoa phong phii nhd d, qudn ao, quat + xay hd chiia nude - Con ngudi thich nghi trdng cay nha kinh vdi mdi trudng va xa hdi ngdy cang phat trien do: + Chinh phuc vu tru + Khoa hgc kT thuat phdt trien + Cdi tie'n cdng cu lao ddng + Cdi tao quan he san xudt, quan he xa hdi + Lam chu thien nhien Kiem tra danh gia • GV cd the sir dung so dd de HS khdi quat kien thiie • GV cd the sir dung phidu hgc tap khuyet mdt sd ndi dung dd kiem tra kien thiic ciia HS Dan • Hgc bdi, tra ldi cau hdi SGK • HS suu tdm, lam dia CD vd ngudn gdc ddng vdt, cua loai ngudi de chuan bi cho bai thuc hanh 253 Bai 46 THUC HANH: BANG C H D N G VE NGUON GOC OONG VAT CUA LOAI NGUdl I MUC TIEU • Giai thfch dugc ngudn gdc ddng vat ciia loai ngudi dua trdn cdc bdng chii'ng giai phdu so sanh, phdi sinh hgc so sanh, dac biet la mdi quan he giira ngudi va vugn ngudi • Bidt sir dung cac hinh ve, tranh, md hinh de so sdnh, phan tich cdc dac diem gidng va khdc giiia ngudi va thii, dac biet la vdi vugn ngudi • Cd quan niem khoa hgc vat bien chiing vd ngudn gdc ciia loai ngudi II CHUAN B! • Tranh ve phdng to hinh 46 SGK • Bang phdng to cac pnue 1,2 SGK • DTa CD- ROM vd cac dang linh trudng • Md hinh hoac tranh bd xuong ngudi va vugn ngudi • May vi tinh va mdy chidu da nang BANG SO S A N H NGl/dl VA VL/ON NGl/CJI N G A Y NAY Ngi dung Ngirdi Vi/gn ngirai - Bd xuong va hinh dang chung - Bd nao - Hdm, rang III HOAT DONG DAY - HOC Kiem tra GV kiem tra phdn chuan bi ciia HS Trong tam Bdng chiing chiing minh ngudn gdc ddng vdt ciia loai ngudi Tie'n hanii • Md bai: GV ndu vdn dd ngudn gdc ddng vat ciia lodi ngudi cdn bang chiing nao de chiing minh? 254 • Dua vao y kien ciia HS, GV ddn ddt vao bai, sau dd GV ndu yeu cdu ciia bai thuc hanh Hogt dpng TIM HIEU SUGIONG NHAU GIUA NGUCil VA THU Hogt dpng cda GV Hogt dpng cda HS - GV cho HS quan sdt cdc tranh hinh - HS boat ddng nhdm + Bd xuong ngudi va thii + Cd nhan nghidn ciiu tranh hinh + So dd cay phat sinh lodi ngudi + Van dung cdc kidn thiic sinh hgc va kidn thii'c thuc td + 32.2 SGK trang 130 + Tranh co quan thodi boa, co quan + Nhan bidt dugc kidn thiic nhu: De eon, bd rang, phdi tuong ddng - GV ydu cdu HS: Cd CO quan tuong ddng + Gdp todn bd SGK + Trao ddi nhdm -^ ddng nhdt y kidn + Chi nhiing dac diem gidng giiia ngudi va thii + Rut ke't luan - GV nhan xet, ddnh gid va giiip HS - Dai dien nhdm trinh bay tren tranh hlnh -> ldp nhan xet bd sung hoan thien kien thiic Ket luan: Sir gidng giiia ngudi va thii the hien - Bd xuong phan hod cdc phdn - Co the cd ldng mao, bd rang phan hoa - Cd tuydn siia, de cd thai nudi bdng siia - Giai doan phdi sdm cua ngudi gidng phdi thii - Cd CO quan lai td gidng thii -^ Loai ngudi thudc ldp thii, nganh ddng vat cd xuong sdng, gidi ddng vat 255 Hoat ddng SUGIONG NHAU GIUA NGUbl VA VUON NGUCJl NGAY NAY Hogt dpng cua GV Hogt dpng cda HS - GV gidi thieu dac diem ciia bd linh trudng + Chi cd ngdn, ngdn cai dd'i dien vdi ngdn + Khdp vai va khuyu tay rat linh boat + Mdt hudng phia trudc, nhin ndi + Chi cd vii d nguc, de con/ liia + Hg vugn ngudi cd tinh tinh rat gidng ngudi - GV cho HS xem dTa phim ve hoat ddng cua ngudi, ciia vugn ngudi - GV yeu cdu HS neu dac diem gidng - GV nhan xet, ddnh gid va ydu cdu HS khdi qudt kien thiic - GV bd sung kien thiic vd nhdm mdu, so lugng rang - HS theo ddi phim, van dung kien thiic bai 42, 4.5, bai kdt hgp vdi kien thiic tir thue te rdi trao ddi nhdm thdng nha't tra ldi -^ ldp nhan xet, bd sung ngudi va vugn ngudi gidng d cac dac diem - Hinh dang kich thudc co the, khdng cd dudi, dung bdng chan - Bd xuong cd 12, 13 ddi xuong sudn, - dot sdng cimg - Bd rang cd 32 chiec, phan boa - Cd nhdm mau, hemdgldbin gidng - Bd gen ngudi gidng bd gen tinh tinh tdi 98% - Kich thudc hinh dang tinh triing, cdu tao thai, chu ki kinh nguyet thdi gian mang thai, thdi gian cho bu gidng - Bie't bieu Id tinh cam, bidt be canh cay de lay thiic an Kdt luan: ngudi va vugn ngudi deu thudc bd linh trudng va cd chung ngudn gdc Hogt dpng SUKHAC NHAU GIUA NGU6l VA VUON NGUC)I NGAY NAY Hogt dpng cda GV Hogt dpng cda HS - GV neu yeu cdu: - HS tidp tuc boat ddng nhdm + Quan sdt hmh 46 SGK trang 192 + Cd nhan nhan biet kien thirc + Xem phim ve boat ddng cua ngudi va + Trao ddi nhdm vd cdc ndi dung ciia bang so sanh vugn ngudi 256 Hogt dpng cda HS Hogt dpng cda GV + Hoan bang "so sdnh ngudi va + Thdng nhdt y kidn ghi vao bang so sdnh vugn ngudi nay" - GV nhan xet, danh gia va giiip HS - Dai dien nhdm trinh bay —> ldp nhan xet bd sung hoan thien kien thirc Ngi dung Ngwdi Virgn nguai Bd xuong va hinh dang chung - Cdt sdng cong hinh chif S, Idng nguc rdng ngang, xuong chau rdng - Cdt sdng hinh cung, Idng nguc hep ngang, xuong chau hep - Tay phan hoa, ngdn cai linh hoat de cam nam, SLf dung cdng cu - Tay dai hon chan, chan cd gdt keo dai - Oi lorn khom, tay tl xudng da't - Chan cd gdt khdng keo dai - OCmg thing, di chay tren mat da't Bo nao - Ldn, nang, nep gap phat tri^n - Kich thudc nhd it nep gap - Phan sp Idn hon phan mat - Phan mat ddi va Idn hon hop sp - Thuy tran phat trien, cd he thdng tin hieu thii - Cd tie'ng ndi, chi? vie't, tu trCru tupng Ham, rang - Bd xuong ham va bd rang bdt thd rang nanh kdm phat tri^n, gdc quai ham nho, xuong ham dudi cd Idi cam - Bd xuong ham to, gdc quai hdm Idn, bd rang thd kho^, rang nanh phdt then - Thirc an chu ydu Id thuc vat - An thiic an chin Ke't ludn: Dac diem khdc giira ngudi va vugn ngudi chiing td vugn ngudi khdng phai la td tidn true tidp cua ngudi md ngudi vd vugn ngudi la nhanh phat sinh cua gdc chung nhung tidn hod theo hudng khac Kiem tra danh gia • GV nhan xet, danh gid phdn chuan bi vd phdn trinh bay ciia nhdm • GV cd the cho didm nhdm cd ket qua tdt va nhdc nhd nhdm cdn thie'u sdt (neu cd) Dan • Vidt thu hoach theo nhdm (3 ngudi) • On tap kidn thiie ve mdi trudng, nhan td sinh thdi S.Hoc 12/2NC r ^• 257 ... lugng va thdi gian xir If cua tac nhan gay dot bie''n? - HS van dung kien thiic sinh hgc va bai SGK sinh hgc 12 nang cao de nhan biet kie''n thiic - HS neu dugc: + Cac loai tia phdng xa, tia tii... thorn, cui day Dau tam tam bdi so 12 Dau tCf boi lai dau iuQng boi Consixin La to, ban day, nang suat cao Lua xuan 10 NN8/xuan/pelital QMS 0,02% Nang suat tang 61, 8 ta/ha Rau mu6ng tir boi Rau... sinh vat da pha vd ranh gidi "loai" sinh hgc, nhung cd lgi cho ngudi nhu the'' nao? HS van dung kien thiic ve sinh trudng phat trien sinh san ciia vi khuan ke''t hgp bai 25 tra ldi dugc: + Vi sinh