Or is it just a matter of the food chain?

Fire is always at the top of the food chain, and it has a big appetite.

火焰永远在食物链的顶端, 而且它的胃口很大.

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The concentrations may be increased or decreased as toxins are passed up the food chain.

随着毒素流经食物链,毒素的含量可能增加地可能降低.

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For example, if the number of wolves and foxes decrease, the food chain is upset.

例如, 如果北极狼和北极狐的数量减少, 那食物链就会遭到破坏,就会脱节.

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Jasmine , an angry consumer , is arguing with Raymond, a representative from a fast food chain.

一位愤怒的消费者 贾斯敏 正和一家快餐连锁店的代表雷蒙德争论.

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The disappearance of some species breaks the ecological balance because the food chain is destroyed.

一些物种的消失破坏了生态平衡,因为食物链被破坏了.

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This has made our food chain unbalanced.

这种行为破坏了食物链的平衡.

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Campaigners have voiced about the possibility of produce from cloned farm animals entering the food chain.

农业活动者们表示,他们深深担忧那些来自克隆的农场动物的产品进入食品链.

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The writer begins by investigating the American industrial food chain.

首先,作者调查了美国工业产上的食物链.

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This poses a threat to the food chain and consequently to human health.

这对食物链是一种威胁,并且会进而影响人类的健康.

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The top of the food chain would be a good place to start looking.

食物链的最高层应该是个搜索的好的开始.

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Producer The first TROPHIC LEVEL , in a food chain.

生产者:食物链中第一个营养级.

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With no natural enemies, polar bears are at the top of the Arctic food chain.

一只睡觉的北极熊看起来是值得尊敬的,但是要提防没有天敌, 北极熊是北极食物链的顶尖.

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This will change the nature the food chain and break the balance of ecology at last.

这将改变大自然的食物链.最终导致生态的不平衡.

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I remember learning about the food chain in the 7 th grade.

我记得在七年级学过有关食物链的知识.

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Carefully add different color food coloring into each straw.

小心地将不同颜色的食用色素加入四段吸管.

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But this time put 10 drops of red food coloring into the glass of water.

不同的是,这次要往杯子里滴十滴红色的食物色素.

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Some people also use food coloring mixed with each layer red and white, very good-looking.

有些人还用食用色素掺入,每层红白相间, 十分好看.

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John and Diane are looking for a place to sit in a crowded food court.

约翰和黛安在拥挤的美食广场找位置坐.

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At the food court there are many different restaurants to choose from.

在小吃区有很多不同的餐馆可供选择.

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Certainly. It's through the mall, above the food court.

当然. 穿过商场, 在食品大厅上面.

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