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[Bio] Bio mc 04-10,11,22,47

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Bio mc 04-10,11,22,47


10.點解唔係from pulmonary vein而係from aorta?
blood in aorta唔係去other body parts咩?
11.點解係a?
22.點知隻bacteria係有益 而唔係no effect呢?
47.amniotic fluid can lubricant the vagina during birth
咁唔算係help to expel the foetus?
Thx!
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10. X= coronary artery. 既然係artery, 當然係由aorta supply blood比佢la
11. coronary artery supply blood 比heart muscle, 如果佢block左, d muscle咪冇O2, nutrient for respiration>>>heart muscle die
22. you should memorize the definitions of the ecological relationships !!!
Is that structure caecum? if yes, I think you should know the correct ans wo
47. the key word is "expel" wo...only uterine muscle & abdominal muscle are the correct ans

[ 本帖最後由 csyujohn 於 2010-5-10 01:28 AM 編輯 ]

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10.coronary artry receive blood directly from aorta
i dont know why,but its the truth
you can see it when you cut pig's heart

11.coronary artry supply oxyen and nutrients to heart muscle!!
blockage=die

22.諗下有個度駛唔駛D細菌幫手分解D野就知,如果不嬲都有更加應該係好野
不過都係靠估
47.應該算,但佢唔係指左去placenta(唔記得點串)咩?

唔知有冇錯,好耐冇見過呢D題目

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10. aorta--> aetery--> arteriole--> capillary-->venule-->vein-->vena cava
coronary artery 其實係aorta 的分支...

22. "點知隻bacteria係有益 而唔係no effect呢?"
呢D唔應該係死背ga..你要睇黎問題入面的descriptions, 加上自己對ecological relationships的認識 黎選取best ans

47. 如果題目用"facilitate"呢個字, amnotic fluid 就啱, 不過題目用咗"expel", 呢個字包含左用力的意思, 所以咪唔啱囉.
更何況, 佢指的地方係placenta wo...一定錯la...

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