1·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。
2·Many species of invertebrate have shells or skeletons made of calcium carbonate.
无脊椎类的好多物种有碳酸钙质的外壳或骨骼。
3·The site of the proposed airport is incredibly important for native invertebrate animals... St Helena has about 400 species that occur nowhere else in the world.
提到机场的位置对于本国的无脊椎动物非常重要…圣赫勒拿大概有400个物种在世界其它地方是没有的。
4·Most of the fossils seen in Paleozoic rocks are invertebrate animals lacking backbones, such as corals, mollusks and trilobites.
大部分在古生代岩层中发现的化石都是没有脊骨的无脊椎动物，例如珊瑚、软体动物和三叶虫。
5·"Things are looking mighty fine," announced the prehistoric invertebrate, taking measure of his surroundings through a series of small, hexagonal eyelets located at the tip of his thorax.
“情况不错”，这只史前无脊椎动物表示，在它胸尖有一组微小的六角形小孔用来探查他周围的环境。
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·Others have suggested that the harvesting of vertebrate and invertebrate predators of Acanthaster could have reduced mortality and caused increased abundance of adults.
还有人认为，捕捞棘冠海星的脊椎动物和无脊椎动物捕食者可以降低死亡率、增加成年个体的数量。
4·Chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably.
对无脊椎动物猎物的化学分析显示，不同物种之间的营养成分存在显著差异；即使在种内，营养成分也可能有很大的差异。
5·"Smithers, don't you think it's ironic that your irregular night-time activities are in inverse proportion to your reputation as an expert in the area of invertebrate research?"
“斯密·德斯，难道你不认为自己无规律的夜生活与你作为无脊椎动物研究领域的专家的声望成反比是具有讽刺意味的吗？”