cold blooded
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There are experimental results as follows:(1) Eriophorum comosum Nees shows strong cold resistance in plasmalemma permeability research. The lethal temperature of Eriophorum comosum Nees is the lowest LT_(50 in comparison with another two plants and is lower than -11.5℃ in August 2005 and December 2005; Soluble protein content of each plant is rising before or after cold hardiness. By SDS-PAGE, Protein band is analysed. Band quantity of Eriophorum comosum Nees is the most and its band color is darkest.(2) Soluble sugar content of three plants after cold hardiness are higher than before cold hardiness, moreover soluble sugar content after cold hardiness shows a decline and there is a narrow range in Eriophorum comosum Nees; Free Proline accumulation is changed by cold stress, and cold resistance is relative to free Proline accumulation; chlorophyll content of both three plants, including chlorophyll a, chlorophyll b and chlorophyll a/b, show a decline tendency along with the descent of temperature. Cynodon dactylon is highly sensitive to cold stress.(3) The soil POD and urease activities' absolute value of Erioophorum comosum Nees and Pogonatherum panideumHack were more than that of Cynodon dactylon before or after low temperature stress, especially POD activities.
实验结果表明:(1)在膜透性的研究中,丛毛羊胡子草抗寒性最强,采用电导率法测得半致死温度LT_(50最低,丛毛羊胡子草抗寒锻炼前后半致死温度LT_(50均小于-11.5℃;在可溶性蛋白含量研究中,抗寒锻炼前后三种植物的可溶性蛋白含量均增加,同时采用SDS-PAGE法,通过对蛋白条带分析,以丛毛羊胡子草条带数最多且着色深;(2)在可溶性糖的研究中,三种植物经抗寒锻炼后叶片可溶性糖含量都比抗寒锻炼前高,且经过抗寒锻炼后三种植物可溶性糖均呈下降趋势,丛毛羊胡子草可溶性糖含量下降较小;从游离脯氨酸含量可知,低温的胁迫影响了植物叶片游离脯氨酸的含量变化,植物的抗寒性与游离脯氨酸有关;低温胁迫下三种植物叶绿素含量随着温度的下降,叶绿素含量、叶绿素a、叶绿素b和叶绿素a/b均呈下降趋势,狗牙根对低温胁迫最为敏感;(3)低温锻炼前后,丛毛羊胡子草和金发草的土壤过氧化物酶与脲酶活性的绝对值均大于狗牙根的,特别是过氧化物酶,说明丛毛羊胡子草和金发草的酶活性大于狗牙根的。
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Second, cold blooded animals get energy from the sun, and thus at night, have very little; while warm blooded animals get it from food, and other ways to conserve energy, and sleep is one of the ways, like us humans.
第二,冷血动物得到太阳的能量,因此,在夜间,只有很少的,而温暖的热血动物得到它从食品,以及其他方式来节约能源,睡眠是其中一个方法,像我们人类。
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Popular terminology still reflect the old division into "warm blooded"and "cold blooded"species.
但是哺乳动物和冷血动物这一古老的分类方式至今仍旧在大众词汇中有所反应。
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cold blooded animal:冷血动物
rodent啮齿动物 | cold-blooded animal冷血动物 | viper毒蛇
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cold blooded animal:凉血动物
cold resistance 抗寒性 ; 耐寒性 | cold-blooded animal 凉血动物 | Coleoptera 鞘翅目
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Cold Blooded Eagles:冷血十三鹰
辛亥双十 The Battle for the Republic of China (1981) | 冷血十三鹰 Cold Blooded Eagles (1979) | 清宫大刺杀 Flying Guillotine 2 (1978)
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Cold Blooded Woman:《冷血女人>
萨伏伊.布朗 Savoy Brown | > Cold Blooded Woman | > I Tried
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The Cold Blooded Killer:冷血杀手
12.Barking Up the Wrong Tree白費力氣 | 13.The Cold Blooded Killer冷血殺手 | 14.A News Flash簡明新聞
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