The answer lies in two associated differences among the species, in their digestive systems and body sizes.
答案在于两个相关的物种之间的差异，它们的消化系统和体型。
This especially benefits children with compromised digestive systems.
对消化吸收系统能力弱的儿童尤其好。
"They're fiber eating, they have inefficient digestive systems," he added.
他又补充说：“它们都食用纤维食物，消化系统都不是很有效。”
For example, animal waste and cattle digestive systems release methane gas.
例如，动物粪便和家畜消化系统排放甲烷。
The Muscles, Bones, Nervous System, Respiratory, Circulatory and Digestive Systems.
肌肉，骨骼，神经系统，呼吸系统，循环系统和消化系统◆。
Plus, good breathing can have beneficial effects on the lymphatic and digestive systems.
另外，呼吸顺畅对淋巴和消化系统也有好处。
Food passes through their digestive systems so quickly, they must eat almost constantly to stay alive.
食物很快地经过它们的消化系统，为了生存它们必须不断的吃东西。
That helps keep toxic metal out of forests, fields and waterways-and the digestive systems of humans who eat game animals.
这就防止了有毒金属物流入森林、田野和水路等区域，并且在人们在吃猎杀的动物时防止吸收这些有毒物质。
Why This Works: Once consumed, Borax damages both the ants \ \ \ 'digestive systems and their outer skeletons, resulting in death.
为何如此：一旦蚂蚁吃了他们，硼砂会破坏蚂蚁的消化系统以及蚂蚁的外部骨骼，结果是蚂蚁见阎王。
The concentration< of acid in these products is so low that our digestive systems are easily capable of coping with it with no harm to us.
这些产品的酸浓度非常低，我们的消化系统很容易就能处理它们，不会对我们造成任何伤害。
Although the young scavengers' digestive systems might be well adapted to digesting bone fragments, they are not suited to handling plastic, metal and glass.
尽管这些幼小食腐动物的消化系统也许足以消化碎骨头，但它们的胃对于塑料、金属物与玻璃是肯定束手无策的。
The cause-specific mortality of the acute infectious diseases, tuberculosis, neonatal diseases, diseases of respiratory and digestive systems have dropped obviously.
急性传染病、结核病、新生儿疾病、呼吸系疾病与消化系疾病的死亡率明显下降。
In 1999, tests by Weinstock showed that when you put parasitic worms into the digestive systems of mice, you could stop them from getting a mouse version of irritable bowel disease.
1999年，温斯托克的实验表明，把寄生虫放入小白鼠的消化系统中可使小白鼠免于患上鼠类结肠激惹综合征。
But there are also a significant number of dedicated vegetarian eateries, where herbivores can eat without fear of beef stock or anchovies and meat-eaters can give their digestive systems a rest.
但也有相当一部分专门的素食餐馆，素食者可不必担忧会吃到牛肉粒或凤尾鱼，食荤者可让消化系统休息一下。
Exercise stimulates the digestive and excretory systems.
运动刺激消化和排泄系统。
Mercury may have toxic effects on the nervous, digestive and immune systems, and on lungs, kidneys, skin and eyes.
汞可能对神经、消化和免疫系统，以及肺、肾脏、皮肤和眼睛具有毒性作用。
Excessive amounts of lead in the blood can cause damage to the digestive, nervous and reproductive systems, and also stomach aches, anaemia and convulsions.
血铅超标对消化、神经、生殖系统都有严重影响，同时可引发胃痛、贫血和痉挛。
Systemic scleroderma is a involving skin, bones and joints, digestive, respiratory, heart, kidney, and other systems, multi-organ disease.
系统性硬皮病是一种累及皮肤、骨关节、消化道、呼吸道、心、肾等多系统、多器官的疾病。
The virus can infect any type of epithelial, or surface cell, which are found throughout the digestive, reproductive, respiratory and urinary systems.
病毒可以影响任何上皮或表皮的癌症类型，不管是在消化系统、生殖系统、呼吸系统还是泌尿系统。
Horses are grazing animals and their digestive and nervous systems function best when feeding follows a natural pattern.
马是食草动物，采用模拟它们自然生存状态的饲养方式，能让它们的消化系统和神经系统功能处于自然运作状态。
When you fast your digestive system is resting, which will let your body heal other parts of the body that have not gotten a lot of attention from our immune systems.
当你断食时候你的消化系统处于休息状态，这使得身体可以修复那些一直没有得到免疫系统关注过的其他组织。
The negative emotion mainly damages the nervous, digestive and circulatory systems.
负性情绪主要损害神经、消化和循环系统。
Its main toxic actions were on the digestive and nervous systems.
对犬的毒性主要表现为消化道和神经系统症状。
Additionally, eating this way is less taxing on the digestive and metabolic systems and also reduces your risk of heart disease.
一般来讲，这样的饮食习惯会减少消化系统和新陈代谢系统的负担，也会降低得心脏病的风险。
The people to be hospitalized were mainly with the diseases as the following: the diseases of respiratory system, digestive system, circulative system and urine and procreative systems.
构成住院病种最主要的疾病是呼吸系统、消化系统、循环系统和泌尿生殖系统疾病。
There are many systems such as the cardiovascular system, the respiratory system, the digestive system, the urinary system, and the endocrine system.
有许多系统，如心血管系统，呼吸系统，消化系统，泌尿系统和内分泌系统。
There are many systems such as the cardiovascular system, the respiratory system, the digestive system, the urinary system, and the endocrine system.
有许多系统，如心血管系统，呼吸系统，消化系统，泌尿系统和内分泌系统。
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