英语翻译据动物学家统计,目前地球上已知的动物大约有150万种.动物可分为脊椎动物和无脊椎动物两大类.无脊椎动物的身体没有
英语翻译
据动物学家统计,目前地球上已知的动物大约有150万种.
动物可分为脊椎动物和无脊椎动物两大类.
无脊椎动物的身体没有脊柱,多数个体很小,但种类却很多,占整个动物种数的90％以上.例如苍蝇、蚊子、蚂蚱、蝴蝶等.
脊椎动物又可分为鱼类、两栖类、爬行类、鸟类和兽类五大类群.
鱼类包括海水鱼和淡水鱼共有25000～30000种,如鲤鱼.
两栖类有2000余种,如青蛙.
爬行类有3000余种,如蛇.
鸟类有9000种,如鸽子.
兽类有4500多种,如马.
据动物学家统计,目前地球上已知的动物大约有150万种.
动物可分为脊椎动物和无脊椎动物两大类.
无脊椎动物的身体没有脊柱,多数个体很小,但种类却很多,占整个动物种数的90％以上.例如苍蝇、蚊子、蚂蚱、蝴蝶等.
脊椎动物又可分为鱼类、两栖类、爬行类、鸟类和兽类五大类群.
鱼类包括海水鱼和淡水鱼共有25000～30000种,如鲤鱼.
两栖类有2000余种,如青蛙.
爬行类有3000余种,如蛇.
鸟类有9000种,如鸽子.
兽类有4500多种,如马.
赞 tyct 幼苗
共回答了14个问题采纳率：85.7% 举报
According to the zoologist statistics on earth, is known about 1.5 million animals.
Animals can be divided into vertebrates and invertebrates two kinds big.
Invertebrates body no spine, most individuals is very small, but many kinds, accounting for more than 90% of the whole animal species. For example flies, mosquitoes, worms, butterfly, etc.
Vertebrates and can be divided into fish, amphibians, reptiles, birds and wild animals five groups.
Fish including water fish and freshwater fish a total of 25000 ~ 30000 kinds, such as the carp.
Amphibians, there are more than 2000 kinds, such as frog.
There are more than 3000 kinds of reptiles, such as snakes.
Birds have 9000 kinds, such as doves.
Earth has more than 4500 kinds of, like a horse.
Animals can be divided into vertebrates and invertebrates two kinds big.
Invertebrates body no spine, most individuals is very small, but many kinds, accounting for more than 90% of the whole animal species. For example flies, mosquitoes, worms, butterfly, etc.
Vertebrates and can be divided into fish, amphibians, reptiles, birds and wild animals five groups.
Fish including water fish and freshwater fish a total of 25000 ~ 30000 kinds, such as the carp.
Amphibians, there are more than 2000 kinds, such as frog.
There are more than 3000 kinds of reptiles, such as snakes.
Birds have 9000 kinds, such as doves.
Earth has more than 4500 kinds of, like a horse.
1年前
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breetstone 幼苗
共回答了10个问题 举报
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据动物学家统计，目前地球上已知的动物大约有150万种。According to the statistics of the zoologist, known on earth there are about 1500000 species of animals.动物可分为脊椎动物和无脊椎动物两大类。Animals can be divided into two major clas...
据动物学家统计，目前地球上已知的动物大约有150万种。According to the statistics of the zoologist, known on earth there are about 1500000 species of animals.动物可分为脊椎动物和无脊椎动物两大类。Animals can be divided into two major clas...
1年前
2
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