腔脉和铂螺旋体之间的差异|比较类似术语之间的差异

Key Difference – Coelenteratesvs Platyhelminthes

Kingdom Animalia is divided into two main categories asvertebrates and invertebrates。Invertebrates are further divided into phyla out of which the two most primitive phyla are the Phylum Coelenterate and Phylum Platyhelminthes. Phylum Coelenterata, also referred to as Cnidaria, is the most primitive invertebrate type and are diploblastic animals possessing only the外胚层和内胚层。门helminthes主要是寄生，他们是三重animals where the ectoderm is specialized with a prominent表皮。这关键区别between Coelenterata and Platyhelminthes is based on the germ layers of the organism.Coelenterates are diploblastic invertebrates whereas Platyhelminthes are triploblastic invertebrates.

1。概述和关键差异
2。What are Coelenterates
3。What are Platyhelminthes
4。Coelenterates和PlatyHelminthes之间的相似之处
5。Side by Side Comparison – Coelenterates vs Platyhelminthes in Tabular Form
6。Summary

What are Coelenterates?

Coelenterates are triploblastic coelomates which are mostly found in aquatic, mostly marine environments. They exist in isolation or as colonies. They show aholozoic nutritionpattern and both extracellular and intracellular digestion takes place. They have a special organ called线虫囊which is used to protect itself from predators. They have an incomplete nervous system, and an incomplete circulatory system. Coelenterates exist in two main forms. The two main forms are美杜莎和息肉。他们在性行为和无性繁殖中繁殖。无性繁殖takes place viabudding。他们可以在内部和外部施肥。

Figure 01: Hydra

Coelenterates are further divided into three main classes namely; Class Hydrozoa, Class Scyphozoa, and Class Anthozoa. ClassHydrozoa是海洋的海洋形式。它们主要是息肉形式，示例包括Hydra，Obelix，，，，and管状。班级Scyphozoaare marine free-living forms of coelenterates. Medusa form is the predominant form where the scyphozoans possess an umbrella-shaped structure. The examples include奥雷利亚（（海蜇）。班级Anthozoamarine organisms which exist either in solitary or colony forms. The examples include大都会（海葵）。

什么是铂金？

铂金也称为扁虫，属于无脊椎动物。铂金主要是寄生的，它们是三重丙欧蛋白酶。这y show bilateral symmetry, and the body is dorso-ventrally flattened. Organisms under the phylum Platyhelminthes do not possess a complete alimentary canal but have a prominent咽有助于消化的结构。不存在开发的循环系统，但具有专门的器官，用于排泄物，称为Protonephridia，带有火焰细胞。他们通过简单的气体在整个体面的简单扩散而呼吸。扁虫的繁殖可以通过配子形成或通过无性含量为性形式。铂金的无性方法包括再生andfission。

图02：PlatyHelminthes

Phylum Platyhelminthes is further classified into three main classes- Turbellaria, Trematoda, Cestoda. ClassTurbellariaare the less parasitic forms of Platyhelminthes. They are found in freshwater environments and usually do not possess hookers or suckers, unlike the other two classes. The examples includePlanaria，二倍。班级Trematoda，由铂金的极端寄生形式组成。它们是细胞内寄生虫，具有突出的吸盘和钩子。这些使生物体能够将自己作为细胞内寄生虫赋予。类trematoda的示例是Fasciola hepatica（肝氟）和二氧化碳。班级Cestoda也是一类寄生型白螺栓。他们还拥有钩子和吸盘。属于Cestoda的生物的例子是Taenia spp。（（绦虫）和Convoluta。

What are the Similarities Between Coelenterates and Platyhelminthes?

两者都属于王国动物和无脊椎动物。
两者都是水生生物。
两者都没有完整的消化系统。
都经历了性关系和无性关系。
两者都可以是寄生。

腔素和铂螺旋体之间有什么区别？

Coelenterates vs Platyhelminthes
Phylum Coelenterata also referred to as Cnidaria, is the most primitive invertebrate type where they are diploblastic animals composed of only the ectoderm and the endoderm.	铂螺旋体主要是寄生虫，它们是三胞胎动物，外胚层非常专业，具有突出的表皮。
Organization
腔内显示组织水平的组织。	Platyhelminthes show organ level organization.
类型
Coelenterates include solitary, sedentary and free-living forms.	Platyhelminthes include free-living and parasitic forms.
专门的器官
腔植物具有保护性的防护剂。	铂金具有促鼻涕，带有火焰细胞以进行排泄。
Symmetry
腔体显示径向对称性。	Platyhelminthes show bilateral symmetry.
cnidocytes
cnidocytesare present in Coelenterata.	在铂金中不存在cnidocytes。
Coelom
存在于腔室中。	缺少铂金。
受精
内部和外部受精	仅内部受精
课程
Hydrozoa，Scyphozoa，Anthozoa	Turbellaria，Trematoda，Cestoda