Any of various echinoderms of the class Crinoidea, including the sea lilies and feather stars, that are characterized by a cup-shaped body, feathery radiating arms, and either a stalk or clawlike structure with which they are able to attach to a surface.

海百合綱動物任一種屬于海百合綱的棘皮動物170黄色网站www，包括有海百合以及毛頭星等日韩欧美啪啪一中文字暮，其特征是身體成杯狀，有羽狀外延腕和可以吸附在海底的肉柄或爪狀結(jié)構(gòu)

These small, spiny echinoderms are found in oceans all over the world.

這些小的人人夜夜揉r精品国产，多刺的棘皮動物能夠找到在全世界的海洋日本久久枸一。

One of the five radial areas on the undersurface of the starfish and similar echinoderms,from which the tube feet are protruded and withdrawn.

步帶海星和類似棘皮動物底部五個輻射狀排列部位中的一個，觸手從這里進行伸縮

One of the five radial areas on the undersurface of the starfish and similar echinoderms,from which the tube feet are protrude d and withdrawn.

步帶海星和類似棘皮動物底部五個輻射狀排列部位中的一個黄片AA片播放久久久，觸手從這里進行伸縮

Sea cucumber, also known as sea rat, wood meat, are echinoderms,cylindrical body, thick skin, soft and stick-slip, muscular, good contraction, as early as a few hundred years ago was regarded as a health tonic, only ginseng seafood in Asia treasures, so named for the sea cucumber.

海參又名海鼠黄色视频射了网站，木肉，屬于棘皮動物国产在线黄色网站，身體呈圓筒形国内a片在线视频，皮厚、柔軟而黏滑费一级无码婬片A片AAA毛片，肌肉發(fā)達亚洲美女操逼视频一区二区，善于收縮，早在數(shù)百年前就被視為滋補強身国产网站视频，僅亞于人參的海產(chǎn)珍品国产黄色网站马上看，故取名為海參。

Zoology Any of various marine echinoderms of the class Asteroidea, characteristically having a thick, often spiny body with five arms extending from a central disk.

海星：任一種海星綱的棘皮動物亚洲成熟，典型特征是長有厚而帶剌的身體99成年小黄片，并生有五條輻射排列的腕 adj.also也作 asteroidal 形容詞 Star-shaped欧美老妇肥婆毛多水多性强。

In the late 1900's, research on echinoderms proided the initial eidence for the importance of phagocytic cells in reactions to foreign material.

在十九世紀末對于棘皮動物的研究獲得了噬菌細胞對外來物質(zhì)的反應(yīng)的重要性的最初的證據(jù)。

Zoology pertaining to the ambulacra of radial echinoderms.

與放射狀的脊皮類動物的吸墊有關(guān)性交黄片国产。

Ocean acidification, which poses adverse effects on calcifying species such as corals, echinoderms, crustaceans, and mollusks as well as certain phytoplankton.

海洋酸化啦啦啦资源在线完整免费高清观看3，這就造成了不利影響鈣化物種如珊瑚，棘皮動物久久成本大片免费播放，甲殼類動物欧美性爱网站地址，和軟體動物以及某些浮游植物。

Study the diversity of vertebrates: sponges, cnidarians, flatworms,nematodes, annelids, mollusks, arthropods, and echinoderms.

A2亚洲免费视频在线播放， B3欧美偷拍视频xxxx， G3 研習無脊椎動物的多樣性－海綿動物、腔腸動物激情性爱国内自拍、扁形動物人人摸时时操天天爽人人插、圓形動物、環(huán)節(jié)動物视频一区二区男人的天堂国产大片免费、軟體動物一级黃色视频一区二区三区、節(jié)肢動物及棘皮動物。