环节动物

Part of animal circular muscles and longitudinal muscle layers, in the longitudinal muscle of mesodermal origin under the body cavity membranes.

环节动物有环肌及纵肌两层，在纵肌之下为中胚层来源的体腔膜。

Any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of ''.

许多皮肤柔软蠕虫样食肉动物，常见于热带森林，有节肢动物和环节动物的特征。

Any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and ''.

许多皮肤柔软蠕虫样食肉动物，常见于热带森林，有节肢动物和环节动物的特征。

A similar enlargement in the digestive tract of annelids and insects.

环节动物或昆虫的消化道中的类似扩大部分。

A similar enlargement in the digestive tract of annelids and in sects.

环节动物或昆虫的消化道中的类似扩大部分。

Terrestrial and aquatic annelids having bristles borne singly along the length of the body.

雌雄同体的陆栖和水栖环节动物，只在沿身体部位有鬃毛。

Leeches are annelids and there are fresh water, terrestrial, and marine leeches.

水蛭 水蛭是环节动物，有淡水水蛭，陆地水蛭和海生水蛭。

Hermaphroditic aquatic or terrestrial or parasitic annelids.

雌雄同体的水生陆生或寄生环节动物。

Aquatic or terrestrial or parasitic annelids.

雌雄同体的水生陆生或寄生环节动物。

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

A2， B3， G3 研习无脊椎动物的多样性－海绵动物、腔肠动物、扁形动物、圆形动物、环节动物、软体动物、节肢动物及棘皮动物。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。