突起

A similar structure in invertebrates, such as one of the pointed denticles or ridges on the exoskeleton of an arthropod or the shell of a mollusk.

齿非脊椎动物的类似器官，例如节肢动物的外骨骼或软体动物的外壳上的尖锐小齿或小突起

Sharks are fish with cartilage instead of skeletons, sharp and pointy teeth, and denticles that protect them from injury.

可知细齿状突起是用来保护它们本身不受伤害，而非牙齿，故选A。

Fruit ovoid, slightly compressed dorsally; ribs thick-obtuse, very prominent, irregularly denticulate especially along ribs, denticles stiff-membranous or with stiffly scarious-processes and hairs; furrows narrow; vittae 1 in each furrow, 2 on commissure.

背的果卵球形，稍压扁；棱厚钝，突出，不规则具小齿特别沿着棱，小齿硬膜质或具硬突起和毛；棱槽狭窄；油管每棱槽1，在合生面上2。

The CD54 colloid gold particles were labeled on the cell surface or projections of tumor cell membrane in each 2 cases of SCC and BCC; and in one case of SCC, CD54 colloid gold particles were also detected on tonofilament desmosome complex.

在3例鳞癌和3例基癌中，各 2例癌细胞表面及突起处观察到CD54胶体金颗粒的存在；其中1例鳞癌张力微丝-桥粒复合体处还可见CD54胶体金颗粒分布。

Results: Typical morphous neurons were differentiated from neural stem cells. The grow state of neuron cell were floating and aggregating, which erupted some enations and branches.

结果：神经干细胞经诱导分化为典型的神经元形态，细胞呈聚集悬浮生长，发出突起和分支。

Our study was designed to evaluate 400 lumbar epidurals performed by 4 first-year residents. The study enrolled 400 cases classified as grade 1 and 2 of spinal process landmarks.

评估400人次由4位第一年住院医师所执行之腰椎硬膜外麻醉，病患选择为以脊椎骨突起分级属第一与第二级之病例。

Erns in Nature: Sea Urchins Sea urchins nestled in a Pacific kelp bed off California offer a sharp contrast in shapes between kelp tendrils and urchin spines.

海胆的巢穴在一片太平洋的海藻床离开加利福尼亚提出清楚的对比在外形在卷须海藻和海胆刺状突起之间。

It is considered to be an original character that various processes densely arranged on the exine.

苔藓孢子的外壁纹饰不同，一般认为孢子外壁光滑是进化性状，外壁上各种突起排列密集的则较为原始。

There are many spines on exine of the pollen grain, but length, density,head and base of spines are different in the populations.

各半夏居群花粉粒表面均具刺状突起，但刺的长短、疏密及刺端和刺基变化因居群不同而有所不同。

Cdc42 and Rac1 have similar effects on cytoskeleton. They both promote the actin polymerization in the cell and profit the formation of filopodia and lamelipodia respectively.

Cdc42和Rac促进细胞内肌动蛋白聚合，分别有利于丝状伪足和片状伪足的形成；而RhoA可能具有与Cdc42 和Rac相反的效果，通常造成细胞边缘和突起的收缩及胞体变圆。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。