Tiêu đề 2. P2C2 (প্রাণী পরিচিতি হাইড্রা) with solve.pdf ✅

cÖvYxi cwiwPwZt nvBWav  Practice Content 1 Topicwise CQ Trend Analysis we.`a : 2020 mv‡j GBPGmwm cixÿv AbywôZ nqwb| Ávbg~jK cÖkœ I DËi 1. nvB‡cv‡÷vg Kx? DËit- nvBWavi †`‡ni gy3 cav‡šÍ Aew ̄’Z, †gvPv AvK„wZ, †QvU I ms‡KvPb camvibkxj Ask‡K nvB‡cv÷g e‡j| 2. wb‡Wveøv÷ †Kvl Kx? DËit- nvBWavi ewntZ¡‡K †MvjvKvi ev d¬v ̄‹ AvK„wZi †h we‡kl ai‡bi †Kvl cvIqv hvq Zv‡K wb‡WvmvBU e‡j| cwiùyUbiZ wb‡WvmvBU †K wb‡Wveøv÷ e‡j| 3. B›Uviw÷wkqvj †Kvl Kx? DËit- ‡cwk AveiYx †Kv‡li AšÍg©yLx miæ cav‡šÍi duv‡K duv‡K ̧”QvKv‡i Aew ̄’Z ¶y`avK„wZi AcwiYZ †Kvl ̧‡jv‡K B›Uviw÷wkqvj †Kvl e‡j| Gme †Kvl ca‡qvR‡b Ab ̈ †h‡Kv‡bv ai‡bi †Kv‡li cwiYZ nq| 4. †bgv‡Uvwm÷ wK? DËit- wb‡WvmvB‡Ui Af ̈šÍ‡i Aew ̄’Z KvBwUb Gi gZ c`v‡_© wbwg©Z Avei‡Y Ave„Z I m~ÎKhy3 GKwU K ̈vcmyj Gi bvg †bgv‡Uvwm÷| 5. †UvwU‡cv‡UwÝ Kx? DËit- :-‡Kv‡bv †Kv‡li †h †Kv‡bv Ab ̈ †h‡Kv‡bv †Kv‡l cwibZ nIqvi ¶gZv †K †UvwU‡cv‡UwÝ e‡j| 6. †g‡mvwMøqv Kx? DËit- wØ ̄Íixq cavYxi GwcWvwg©m I G‡ÛvWvwg©m Gi gvSLv‡b Aew ̄’Z †Rwji g‡Zv, ̄^”Q, w ̄’wZ ̄’vcK ̄Íi‡K †g‡mvwMøqv e‡j| 7. †÷wiIM ̈v÷ayjv Kx? DËit- gvZ„‡`‡ni mv‡_ mshy3 M ̈v÷ayjv‡K †÷wiIM ̈v÷ayjv e‡j| 8. nvBWavi †Kvb †Kvl ey`ey` ˆZwi K‡i? DËit- nvBWavi GwcWvwg©‡mi Mawš’ †Kvl ey`ey` ˆZwi K‡i| 9. ivmvqwbKfv‡e wnc‡bvUw·b wK w`‡q ˆZwi? DËit- ivmvqwbKfv‡e wnc‡bvUw·b †cavwUb I †db‡ji mgš^‡q ˆZwi| 10. nvBWavi †`‡n †Kvb ̄’v‡b †bgv‡Uvwm÷ _v‡K bv? DËit- nvBWavi c`Z‡j †bgv‡Uvwm÷ _v‡K bv| 11. †Kvb †Kvl‡K nvBWavi wiRvf© (reserve) †Kvl ejv nq? DËit- B›Uviw÷wkqvj †Kvl‡K nvBWavi wiRvf© (reserve) †Kvl ejv nq| 12. nvBWavi †Kvb †Kvl k¦m‡b AskManY K‡i? DËit- nvBWavi cywó‡Kvl k¦m‡b AskManY K‡i| 13. nvBWavi wb‡Wveøv÷ †Kvl ̧”Q‡K wK e‡j? DËit- nvBWavi wb‡Wveøv÷ †Kvl ̧”Q‡K †bgv‡Uvwm÷ e ̈vUvix e‡j| 14. nvBWavi me©e„nr †bgv‡Uvwm÷ †KvbwU? DËit- nvBWavi me©e„nr †bgv‡Uvwm÷ w÷‡bvwUj ev †cwbUa ̈v›U| 15. nvBWavi †g‡mvwMøqvi caavb ivmvqwbK c`v_© wK? DËit- nvBWavi †g‡mvwMøqvi caavb ivmvqwbK c`v_© cvwb| G‡Z wKQy cwigvY Zš‘gq †Kvjv‡Rb †cavwUb I †ncvwib mvj‡dU †cavwUIMøvB‡Kb _v‡K| 16. nvBWav †Kvb ai‡bi Lv` ̈ cwicvK Ki‡Z cv‡i bv? DËit- nvBWav kK©iv RvZxq Lv` ̈ cwicvK Ki‡Z cv‡i bv| 17. kage›Ub Kx? DËit- eû‡Kvlx Rxe‡`‡n wewfbœ A1⁄2 ev Z‡š¿i g‡a ̈ kixie„Ëxq Kvh©vejxi mylg e›Ub †K kage›Ub e‡j| 18. nvBWav‡K jvBd js †cwqs †M÷ ejv nq †Kb? DËit- nvBWav I ˆkev‡ji wg‡_vRxweZvq Giv GKwU n‡Z AciwU KL‡bvB wew”Qbœ n‡Z cv‡i bv| GgbwK wW¤^vYyi mv‡_ ˆkev‡ji Ask nvBWavi cieZ©x caR‡b¥ mÂvwiZ nq GRb ̈ nvBWav‡K jvBd js †cwqs †M÷ ejv nq| 19. nvBWavi †Kvb †Kvl iƒcvšÍwiZ n‡q Mawš’ †Kv‡l cwiYZ nq? DËit- nvBWavi B›Uviw÷wkqvj †Kvl iƒcvšÍwiZ n‡q Mawš’ †Kv‡l cwiYZ nq| 20. †bgv‡Uvwm÷ Gi †Kvb Ask wUaMv‡ii g‡Zv KvR K‡i? DËit- wb‡Wvwmj wUaMv‡ii g‡Zv KvR K‡i| 21. wnc‡bvUw·b wK? DËit- †bgv‡Uvwm‡÷i †fZ‡i Aew ̄’Z, †cavwUb I †dbj mgš^‡q MwVZ welv3 caK„wZi Zi‡ji bvg wnc‡bvUw·b| 22. M ̈v‡UavWvwg©‡mi †Kvl mg~‡ni bvg wjL| DËit- M ̈v‡UavWvwg©‡mi †Kvl mg~n n‡jv: cywó †Kvl MÖwš’ †Kvl B›Uviw÷wkqvj †Kvl ms‡e`x †Kvl  ̄œvqy †Kvl 23. Hydra-i Lv` ̈mg~‡ni bvg wjL| DËit- nvBWav gvsmvkx cavYx| ¶y`a RjR cavYx, wewfbœ cZ‡1⁄2i jvf©v, mvB‡K¬vcm I W ̈vdwbqv, †QvU †QvU K„wg, gv‡Qi wWg Ges GwbwjWv c‡e©i LÛvwqZ cavYx, ¶y`a μv÷vmxq mwÜc`x nvBWavi caavb Lvevi| 24. cwicvK wK? DËit- ‡h ˆRe-ivmvqwbK cawμqvq RwUj Lv` ̈e ̄Íy wewfbœ GbRvB‡gi mvnv‡h ̈ †f‡1⁄2 Zij, mij I †Kv‡li †kvlY Dc‡hvMx AYy‡Z cwiYZ nq, Zv‡K cwicvK e‡j| 25. ewnt‡Kvlxq cwicvK Kx? DËit- ‡Kvb wbw`©ó †Kv‡li Af ̈šÍ‡i cwicvK bv n‡q †Kv‡li evB‡i †Kvb bvjx ev _wji g‡a ̈ †h cwicvK msNwUZ nq Zv‡K ewnt‡Kvlxq cwicvK e‡j| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction To Animal: Hydra cÖvYxi cwiwPwZt nvBWav 02 UwcK 2016 2017 2018 2019 2021 2022 2023 ‡gvU nvBWavi MVb, Lv` ̈MÖnY I cwicvK cÖwμqv eY©bv Kiv - 1 - 5 - 6 6 18 nvBWavi Pjb, cÖRbb I wg‡_vRxexZv we‡kølY Kiv 2 1 - 5 - 4 5 14


cÖvYxi cwiwPwZt nvBWav  Practice Content 4  GB MVbZ gyKy‡ji AMacav‡šÍ Gici G‡K G‡K nvB‡cv‡÷vg, Kwl©Kv Ges gyLwQ`a MwVZ nq|  cavq GKB mv‡_ MVbiZ gyKyj I gvZ„nvBWavi ms‡hvM ̄’‡j GKUv LuvR MwVZ nq Ges Zv μgkt e„w× †c‡Z _v‡K|  gyLwQ`a MwVZ nevi cvkvcvwk c~Y©v1⁄2 `kvi gyKy‡j LvRwU MfxiZi n‡Z n‡Z GK mgq gvZ„ nvBWavi †`n †_‡K wewQbœ n‡q hvq| 18. nvBWavi †bgv‡UvmvBU I †bgv‡Uvwm÷ Gi g‡a ̈ cv_©K ̈ wK? DËit- nvBWavi †bgv‡UvmvBU I †bgv‡Uvwm÷ Gi g‡a ̈ cv_©K ̈: wb‡WvmvBU I †bgvv‡Uvwm‡÷i g‡a ̈ cv_©K ̈ cv_©‡K ̈i welq wb‡WvmvBU ‡bgv‡Uvwm÷ 1| Ae ̄’vb wbWvwiqv ce©fy3 cavwY‡`i GwcWvwg©‡mi †cwk- AveiYx †Kv‡li duv‡K ev wfZ‡i| wb‡WvmvB‡Ui ùxZ ga ̈vs‡k| 2| MVb wØ ̄Íix AveiY, wb‡Wvwmj, AcviKyjvg, ‡bgv‡Uvwm÷, mvB‡UvcøvRg, wbDwK¬qvm BZ ̈vw` wb‡q MwVZ| duvcv I c ̈vuPv‡bv m~ÎKhy3 GKwU †MvjvKvi ev wW¤^vKvi _wj we‡kl| 3| AveiY mRxe cøvRgv‡gg‡eab w`‡q MwVZ| wbR©xe KvBwUb wbwg©Z 4| cÖK...wZ GwcWvwg©‡mi GKcaKvi we‡kl ai‡bi †Kvl| wb‡WvmvBU †Kv‡li GKwU Awe‡”Q` ̈ Ask| 5| KvR †bgv‡Uvwm÷ aviY K‡i| wkKvi aiv, AvZ¥i¶v, Pjb I AvuK‡o ai‡Z mvnvh ̈ K‡i| 19. nvBWavi nvgv ̧wo I wWMevwR Pjb Gi g‡a ̈ cv_©K ̈ wK? DËit- nvBWavi nvgv ̧wo I wWMevwR Pjb Gi g‡a ̈ cv_©K ̈ jywcs/nvgv ̧wo mvgvimwës/wWMevRx Pjb 1. GwU Hydra-i we‡kl Pjb c×wZ| 1. GwU Hydra-i mvaviY Pjb c×wZ| 2. GwU gš’i MwZm¤úbœ cawμqv| 2. GwU `aæZ MwZm¤úbœ cawμqv| 3. G c×wZ‡Z cv`-PvKwZ KL‡bv gvwUi Dc‡i D‡V Av‡m bv| 3. G c×wZ‡Z cv`-PvKwZ gvwUi Dc‡i D‡V Av‡m| 4. G c×wZ‡Z Hydra KL‡bv Kwl©Kvi Dci fi w`‡q `uvovq bv| 4. G c×wZ‡Z Hydra GKevi Kwl©Kv Ges GKevi cv`-PvKwZi Dci fi w`‡q `uvovq| 5. Kwl©Kv me©`v MwZc‡_i w`‡K _v‡K| 5. G‡¶‡Î GKevi Kwl©Kv Ges Av‡iKevi cv`-PvKwZ MwZc‡_i w`‡K _v‡K| 6. G c×wZ‡Z GKevi Pj‡Z GKwU gvÎ jyc ˆZwi nq| 6. G c×wZ‡Z GKevi Pj‡Z `ywU jyc ˆZwi nq| 7. G c×wZ‡Z GKevvi Pj‡Z Hydra Zvi †`‡ni ˆ`‡N ̈©i A‡a©K `~iZ¡ AwZμg K‡i| 7. G c×wZ‡Z GKei Pj‡b Hydra Zvi †`‡ni ˆ`‡N ̈©i wØ ̧Y `~iZ¡ AwZμg K‡i| 8. `xN©c_ AwZμg Kivi Rb ̈ G c×wZ Abym„Z nq| 8. Aí c_ AwZμg Kivi Rb ̈ G c×wZ Abym„Z nq| 20. nvBWavi ̄^fve †Kvb ai‡bi? DËit- Hydra n‡”Q Cnidaria (wbWvwiqv) c‡e©i GKwU RjR cavYx| Gi †`n mij, A_©vr Aí K‡qKwU A1⁄2 w`‡qB nvBWav Zvi †`‡ni me KvR K‡i _v‡K| GwU wØ ̄Íix cavYxi GK Av`k© D`vniY| nvBWav Ab ̈ †Kv‡bv cavbx †L‡q Rxeb aviY K‡i, ZvB G‡K gvsmvkx cavbx ejv nq| nvBWavi GKwU caavb ̄^fve n‡jv, ¶yavZ© Ae ̄’vq Gi †`n I Kwk©Kv, me‡P‡q †ewk camvwiZ n‡q cvwb‡Z `yj‡Z _v‡K| nvBWav Zvi †`‡n _vKv Kwl©Kvi mvnv‡h ̈ Lv` ̈ ManY K‡i _v‡K| 21. Hydra Gi GwcWvwg©‡mi †Kvlmg~‡ni bvg wjL| DËit- Hydra Gi GwcWvwg©‡mi †Kvlmg~n  †cwk-AveiYx †Kvl  B›Uviw÷wkqvj †Kvl  ms‡e`x †Kvl  mœvqy †Kvl  Mawš’ †Kvl  Rbb †Kvl Ges  wb‡WvmvBU 22. †g‡mvwMøqv ej‡Z wK eyS? DËit- ‡g‡mvwMøqv ̄ÍiwU †`n Ges Kwl©Kv Dfq ̄’v‡b Qov‡bv _v‡K| Z‡e Kwl©Kvq me‡P‡q cvZjv Ges cv` PvKwZ‡Z me‡P‡q †ewk cyiæ nq| †g‡mvwMøqvi G ai‡bi web ̈vm cv`-PvKwZi AwZwi3 hvwš¿K camviY cawZ‡iv‡a mvnvh ̈ K‡i Ges Kwl©Kv‡K AwaKZi bgbxqZv ca`vb K‡i| nvBWavi‡g‡mvwMøqv cavq 0.1 k~b ̈ `kwgK GK gvB‡μvwgUvi cyiæ nq Ges Dfq ͇̄ii †Kvl †g‡mvwMøqv MV‡b Ask ManY K‡i| 23. †bgv‡Uvwm÷ KZ caKvi I Kx Kx? DËit- wbw¶ß m~·Ki ˆewk‡ó ̈i Dci wfwË K‡i weÁvbx fvb©vi 1965 mv‡j, wbWvwiqv RvZxq cavwY‡`i †`n †_‡K, 23 ai‡bi †bgv‡Uvwm÷ kbv3 K‡i‡Qb| Gi g‡a ̈ Pvi ai‡bi †bgvUwm÷ nvBWavq cvIqv hvq|  w÷‡bvwUj ev †cwbUa ̈v›U  fj‡f›U †Wm‡gwbg  †÷ac‡Uvwjb iæwUb ̈v›U ev n‡jvwUaKvm AvB‡mvivBRv  †÷awiIwjb MøwUb ̈v›U ev A ̈vwUaKvm AvB‡mvivBRv 24. Hydra-i †bgv‡Uvwm÷ Gi myÎ wb‡¶c c×wZ wjL| DËit- †bgv‡Uvwm‡÷i m~Î wb‡¶‡ci †KŠkj A‡bKUv e›`y‡Ki wUaMv‡ii g‡Zv| ‡bgv‡Uvwm‡÷i myÎK wb‡¶c GKBmv‡_ GKwU ivmvqwbK I hvwš¿K cawμqv| wkKv‡ii ev kÎæi mÜvb A_ev Ab ̈ †h‡Kv‡bv Kvi‡Y wb‡WvmvBU DÏxß n‡j G cawμqvwU ïiæ nq| †Kv‡bv wkKvi Kwl©Kvi wbKUeZ©x n‡j wkKvi-‡`‡ni ivmvqwbK c`v‡_©i cafv‡e †bgv‡Uvwm÷ cavPx‡ii cvwb‡f` ̈ ¶gZv †e‡o hvq| G‡Z Lwji wfZ‡i `aæZ cvwb ca‡ek Kivq wfZ‡ii AwfmaewYK PvcI †e‡o hvq| Gmgq wkKvi wb‡WvmvB‡Ui wb‡Wvwmj ̄úk© KivgvÎ Gi AcviKyjvg Ly‡j hLb `aæZ cvwb wfZ‡i ca‡ek Kivq nvB‡Wav÷ ̈vwUK Pvc (hydrostatic pressure) †e‡o †M‡j †bgv‡Uvwm÷-m~ÎK w¶ca MwZ‡Z evB‡i wbw¶ß nq| 25. wb‡WvmvBU †Kvl‡K e ̈vUvwi ejv nq †K‡bv? DËit- Hydra-r Kwl©Kvi evwn‡ii cavPx‡i †QvU wUDgv‡ii g‡Zv AmsL ̈ wb‡WvmvBU †Kvl ̧”QvKv‡i mvRv‡bv _v‡K| G‡K †bgv‡Uvwm÷ e ̈vUvwi _v‡K, hv wb‡WvmvBU †Kvl Øviv MwVZ| ca‡Z ̈K e ̈vUvix‡Z _v‡K wewfbœ ai‡Yi †bgv‡Uvwm÷| 26. "`ywU Rx‡ei ci ̄ú‡ii mvnvh ̈ wb‡q †e‡P _vKv m¤¢e''-e ̈vL ̈v Ki| DËit- `ywU Rx‡ei ci ̄ú‡ii mvnvh ̈ wb‡q †e‡P _vKv m¤¢e hv Rxe؇qi g‡a ̈ wg‡_vRxweZv wb‡`©k K‡i| Hydra viridissima bvgK meyR nvBWav I Zoochlorella bvgK ˆkev‡ji g‡a ̈ G m¤úK© my ̄úó †`Lv hvq| hLb `ywU wfbœ caRvwZfy3 Rxe Nwbôfv‡e mnve ̄’v‡bi d‡j ci ̄ú‡ii KvQ †_‡K DcK„Z nq, ZLb G ai‡bi mvnPh©‡K wg‡_vRxweZv e‡j| G Ae ̄’vq Dfq cavYx G‡K Ac‡ii gva ̈‡g Lv` ̈, Avkaq, eR©wb®‹vkb BZ ̈vw` Gi gva ̈‡g DcK„Z nq|