The coelom formed from a pocketlike outgrowth of the wall of the archenteron, especially in echinoderms and ''.

腸體腔由原腸壁的袋裝生長而形成的體腔，尤其存在于棘皮動(dòng)物和脊索動(dòng)物中

The coelom formed from a pocketlike outgrowth of the wall of the archenteron, especially in echinoderms and chordates.

腸體腔由原腸壁的袋裝生長而形成的體腔http//www.色.com日本，尤其存在于棘皮動(dòng)物和脊索動(dòng)物中

The animal's diet consists of a variety of bivalves, snails and echinoderms, as well as other crustaceans such as hermit crabs.

動(dòng)物的飲食包括各種各樣的貝類黄色视频插女，蝸牛和棘皮類，如寄居蟹以及其他甲殼動(dòng)物直接黄色视频。

The fourth milestone was in the embryonic stage of development . Vertebrates and echinoderms began to develop differentiated mouth structures from secondary openings off the blastopore ( an initial opening in the embryonic cavity ).

第四個(gè)重要事件出現(xiàn)動(dòng)物的胚胎發(fā)育期国产免费三级片AAAA，脊椎動(dòng)物和棘皮動(dòng)物開始在胚孔（即動(dòng)物早期胚胎原腸的開口）相對(duì)的一端另行開口，并最終發(fā)育為成體的口美女视频黄频a美女。

It may include the remains of bottom-dwelling forms (e.g. ammonites, echinoderms, and pelecypods), and nodules of chert and pyrite.

它可以包括海底形態(tài)的殘留物（即鸚鵡螺化石成人免费黄色视频观看在线、棘皮動(dòng)物和瓣鰓綱斧足類動(dòng)物）和燧石和黃鐵礦的結(jié)節(jié)。

From wikipedia: Like other echinoderms the cuke has a type of collagen in its skin capable of excreting or absorbing more water effectively changing from a 'liquid' to a 'solid.

和其他棘皮類動(dòng)物一樣一级少妇视频，海參的肌膚內(nèi)有一種膠原質(zhì)欧美日韩高清，能有效排出或者吸收更多水，在液態(tài)和固態(tài)之間轉(zhuǎn)換国产一级A片嘿咻嘿咻。

The planktonic larvae of echinoderms and decapod crustaceans have increased in abundance from 1958 to 2005, and especially since the mid-1980s, as North Sea SST has increased.

棘皮類和甲殼綱的十足類浮游動(dòng)物的幼體從1958年到2005年一直處于增長狀態(tài)av在线免费看污片，尤其是在80年代中期，這是由于北海海水的表面溫度增長的緣故人人干人人艹超碰。

Primitive echinoderms having five or more feathery arms radiating from a central disk.

原始的棘皮動(dòng)物黄色日，有五只或更多的軟臂從中心圓盤放射狀伸出。

A perforated platelike structure in most echinoderms that forms the intake for their water-vascular systems .

篩在大多數(shù)棘皮動(dòng)物身上的一個(gè)多孔板狀的結(jié)構(gòu)日韩新片免费无码观看，構(gòu)成它們水管系的進(jìn)口

Comparative studies of immune functions in echinoderms have demonstrated that there is a complement system in echinoderms that appears to have alternative pathway and lectin pathway but lack classical pathway and terminal pathway.

比較免疫學(xué)分析表明久久激情免费视频，棘皮動(dòng)物存在脊椎動(dòng)物補(bǔ)體系統(tǒng)的替代途徑和凝集素途徑，但未發(fā)現(xiàn)經(jīng)典途徑和明確的終端途徑欧美国产综合几欧美视频。