invertebrate

英/ ɪnˈvɜːtɪbrət /

美/ ɪnˈvɜːrtɪbrət /

TOEFL/GRE/GMAT/

1
[无脊椎] 无脊椎动物
...七大类：包括原生动物、棘皮动物、软体动物、扁形动物、环节动物、腔肠动物、节肢动物等。无脊椎动物举例：孔虫、放射虫、钵水母、珊瑚虫、乌贼及棘皮动物、水螅、一些螺类、蚌类及淡水虾蟹等。拓展资料：无脊椎动物(Invertebrate)是背侧没有脊柱的动物，它们是动物的原始形式。其种类数.
2
敶
... Dishabituation 莹习惯化 Invertebrate 敶去习惯化 Stimulus s substitution 刺激替代 ...

短语

1
Most invertebrate species disappeared during a wave of extinctions.
大多数无脊椎动物在一次（物种）灭绝浪潮中消失了。
2
Increasing salinity caused by the evaporation resulted in the extermination of scores of invertebrate species.
蒸发引起的盐度增加导致了无脊椎动物物种的灭绝。
3
People aren't even required to seek permits to move plants or invertebrate animals around as long as they are not classified as pests.
人们甚至可以未经许可就对植物或无脊椎动物进行迁移，只要它们未被归类为有害动植物。

Invertebrate
Invertebrates are animal species that neither possess nor develop a vertebral column, derived from the notochord. By definition, this includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects, crabs, lobsters and their kin, snails, clams, octopuses and their kin, starfish, sea-urchins and their kin, and worms.The overwhelming majority of animal species are invertebrates. One estimate in the journal Science put the figure at 97%. Many individual invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata and some of the so-called invertebrates, such as the Chaetognatha, Hemichordata, Tunicata and Cephalochordata are more closely related to the vertebrates than to other invertebrate phyla. This makes the term "invertebrate" almost meaningless for taxonomic purposes.

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