a国产亚洲欧美精品一区在线观看_看一级黄色毛片_在线观看播放_一级片精品_国产精成人品日日拍夜夜免费_草久在线视频

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 英語短文 » 正文

人類是肉食動物還是草食動物

放大字體  縮小字體 發布日期:2008-08-18
核心提示:Are human beings anatomically more similar to natural carnivores or to natural herbivores? Lets find out. Intestinal tract length. Carnivorous animals have intestinal tracts that are 3-6x their body length, while herbivores have intestinal tracts 10


    Are human beings anatomically more similar to natural carnivores or to natural herbivores? Let’s find out….

    Intestinal tract length. Carnivorous animals have intestinal tracts that are 3-6x their body length, while herbivores have intestinal tracts 10-12x their body length. Human beings have the same intestinal tract ratio as herbivores. 

    Stomach acidity. Carnivores’ stomachs are 20x more acidic than the stomachs of herbivores. Human stomach acidity matches that of herbivores. 

    Saliva. The saliva of carnivores is acidic. The saliva of herbivores is alkaline, which helps pre-digest plant foods. Human saliva is alkaline. 

    Shape of intestines. Carnivore bowels are smooth, shaped like a pipe, so meat passes through quickly — they don’t have bumps or pockets. 

    Herbivore bowels are bumpy and pouch-like with lots of pockets, like a windy mountain road, so plant foods pass through slowly for optimal nutrient absorption. Human bowels have the same characteristics as those of herbivores. 

    Fiber. Carnivores don’t require fiber to help move food through their short and smooth digestive tracts. Herbivores require dietary fiber to move food through their long and bumpy digestive tracts, to prevent the bowels from becoming clogged with rotting food. Humans have the same requirement as herbivores. 

    Cholesterol. Cholesterol is not a problem for a carnivore’s digestive system. A carnivore such as a cat can handle a high-cholesterol diet without negative health consequences. A human cannot. Humans have zero dietary need for cholesterol because our bodies manufacture all we need. 

    Cholesterol is only found in animal foods, never in plant foods. A plant-based diet is by definition cholesterol-free. 

    Claws and teeth. Carnivores have claws, sharp front teeth capable of subduing prey, and no flat molars for chewing. Herbivores have no claws or sharp front teeth capable of subduing prey, but they have flat molars for chewing. Humans have the same characteristics as herbivores. 

    But aren’t humans anatomically suited to be omnivores?

    Nope. We don’t anatomically match up with omnivorous animals anymore than we do with carnivorous ones. Omnivores are more similar to carnivores than they are to herbivores. 

    人類在解剖學上更類似于天然肉食動物還是草食動物呢?我們一起去弄明白……

    腸子的長度.肉食動物腸管的長度是自身體長的3-6倍,而草食動物是10-12倍,人類的比率類似于草食動物.

    胃酸.肉食動物胃臟酸性20倍于草食動物,人類胃酸接近于草食動物.

    唾液.肉食動物的唾液呈酸性,為了協助預先消化植物性食物,草食動物的唾液呈堿性,人類的唾液呈堿性

    腸子的形狀.,肉食動物的腸子平滑,形狀類似于管子,因此肉食可以迅速地通過-------他們沒有凸起或凹陷,草食動物的腸子凹凸不平,像裝了詵多口袋,像有風的山路,因此植物性食物會緩緩地通過,是為了最充分地吸收營養..人類的腸子有著與草食動物類似的特征.

    纖維素,肉食動物不需要纖維來幫助食物穿過它們又短又光滑的腸管,而草食性動物則需要纖維來幫助食物穿過它們長而凹凸不平的腸管,以防腸子被腐爛的食物堵塞.人類有著與草食動物一樣的需要.

    膽固醇.對于肉食動物來說,膽固醇不是什么問題,肉食性動物比如一只貓,可以保持高膽固醇的飲食習慣,而不會對健康有害.一個人則不然,人類在飲食上對膽固醇是零需求,因為我們的身體自己會制造所需的全部膽固醇,膽固醇只存在于肉類食物中,在植物類食物中是沒有的.以素食為主的飲食習慣是由對膽固醇的零需要來定義的.

    爪子和牙齒.肉食動物有爪子,和易于捕捉獵物的尖利的前牙,而沒有用于咀嚼的平坦的臼齒,草食動物則沒有爪子和尖利的前牙,但是卻有用于咀嚼的平坦的臼齒,人類有著與草食動物一樣的特征.

    但是在解剖學上難道人類與雜食動物不相配?

    對,在解剖學上我們不再把與肉食動物作比較那樣,同與雜食動物作匹配了,肉食動物與草食動物相比,雜食動物更類似于肉食動物

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關鍵詞: 人類 動物
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 4.692 second(s), 830 queries, Memory 3.83 M
主站蜘蛛池模板: 最新国产乱人伦偷精品免费网站 | 99精品国产福利在线观看免费 | 又黄又爽又刺激的视频 | 久久精品国产香蕉亚洲av | 国产高清在线精品一区不卡 | 亚洲日韩欧美一区二区三区 | 蜜桃视频在线网站 | 91亚洲精品在线 | 果冻传媒2021精品一区 | 久在线观看视频 | 亚洲国产日韩a在线乱码 | 亚洲一区二区久久 | 国偷盗摄自产福利一区在线 | 人人草人人射 | 九色国产精品 | 麻豆国产在线精品国偷产拍 | 天天干天天操天天碰 | 欧美精品一区二区三区手机在线 | 免费观看在线日韩av片 | 在线看亚洲十八禁网站 | 性欧美极品另类 | 国产麻豆精品视频一区二区 | 永久免费无码AV网站在线观看 | 日一级毛片| 国产系列视频二区 | 51精品久久久久久久蜜臀 | 亚洲天堂免费av | 久久国产亚洲欧美久久 | www.黄色| 无码aⅴ精品一区二区三区 中国激情网 | 456影院在线播放精品 | 午夜精品久久久久久久久久 | 99久久精品国产免费看 | 中国少妇内射XXXXⅩ | 国产自产精品一区 | 亚洲欧美日韩一区二区 | 无码字幕av一区二区三区 | 国产精品一区二区三区在线播放 | chaui中国少妇hd| 国产高清不卡一区二区 | 成人无码免费一区二区三区 |