| 单词 | rhizopod |
| 例句 | A rhizopod. common in fresh water, capable of undergoing many changes of form at will. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z From naked amoeba the shell-protected rhizopods were no doubt evolved, and it is a curious sight to observe them swallowed, home and all, to be digested out of their house. The Galaxy Vol. XXIII?March, 1877.?No. 3 2011-01-31T03:00:16.193Z He does not designate the particular rhizopods that he had under observation, yet from his language, we are able to classify them approximately. The Dawn of Reason or, Mental Traits in the Lower Animals Agassiz remarks that the effect of the nature of the bottom of the sea on sponges and rhizopods “is an all-important factor in modifying the organism.” Lamarck, the Founder of Evolution His Life and Work Marine rhizopods, globular or irregular in form, and slow to change shape. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 Yet one cubic inch of chalk is calculated to hold the remains of more than one million rhizopods. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky These shells of Mollusca decompose more easily and disappear sooner than the smaller, and apparently more delicate, shells of rhizopods. Discourses Biological and Geological Essays Memory of Locality.—There can be no doubt but that the rhizopods observed by Carter displayed memory of locality. The Dawn of Reason or, Mental Traits in the Lower Animals Professor Claus has looked at this latter organism, and thinks that it is the shell of a rhizopod, probably one of the Arcellidae. Insectivorous Plants A form which I have taken to be a young stage of this interesting rhizopod is described as follows: Fig. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 These rhizopods live in the oceans in enormous numbers. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky In these rocks the nucleus of every minute spherule is seen, under the microscope, to consist of a small rhizopod or foraminifer. The Student's Elements of Geology Some time ago, while examining the inhabitants of a drop of pond water under a high-power lens, I noticed several rhizopods busily feeding on the minute buds of an alga. The Dawn of Reason or, Mental Traits in the Lower Animals It likewise sank to the bottom, and, after examining the rhizopods, swam away, evidently regarding them as dead and unfit for food. The Dawn of Reason or, Mental Traits in the Lower Animals The process was repeated two or three times under my observation, so that I am convinced that it was not a developmental form of some rhizopod. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 For a long while they were believed to be living animals, like the rhizopods. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky The rhizopods remained quiet for several seconds, and then swam to the alga and resumed feeding. The Dawn of Reason or, Mental Traits in the Lower Animals These rhizopods suddenly drew in their hair-like cilia and sank to the bottom, to all appearances dead. The Dawn of Reason or, Mental Traits in the Lower Animals There were other minute animals swimming in the drop of water, but the rhizopods fed on unconcernedly until the shark of this microscopic sea appeared. The Dawn of Reason or, Mental Traits in the Lower Animals I have repeatedly noticed the action of alcohol on rhizopods. The Dawn of Reason or, Mental Traits in the Lower Animals |
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