Thekey differencebetween exoskeleton and endoskeleton is that外骨骼是一种外部骨骼，存在于动物体外，而内骨骨骼则是动物体内存在的内部骨架。
Body of a living organism, be it a honey bee or a human being, is a complex network of different organs. These organs perform several functions of their own besides being connected to each other for a harmonious, balanced and functional body. All are complex marvels of nature as every species has a special feature of its own. Some have only an endoskeleton while some have only an exoskeleton while some have both for support. As the name suggests, exoskeleton locates outside the body while endoskeleton locates inside the body. The external skeleton protects and also supports the animal’s body. On the other hand, endoskeleton gives support and protection to both the inner softer and fragile organs like heart, lungs, and kidneys, etc.
Exoskeleton is an external shell-like structure that is present outside the body of an animal. It is mainly a non-living structure derived from theectoderm。大约5.5亿年前，矿化外骨骼的化石记录揭露了。它具有非常抗性，僵硬，有些脆弱和坚硬的结构，具有多个特定的角色。
外骨骼主要有助于排泄动物体内产生的废物或Anthropoda。Furthermore, it supports the movement and safety of inner softer organs. Not only that, but exoskeleton also involves sensing and feeding. It contains calcium carbonate and/or chitin. In simple language, it is called a shell. Organisms like snails, crabs, lobsters, shellfish cockroaches, crustaceans and insects like grasshoppers have an exoskeleton and some animals like tortoise have both endoskeleton and exoskeleton.
What is Endoskeleton?
What are the Similarities Between Exoskeleton and Endoskeleton?
- 同时,像suppor都有类似的功能t, movement and protection.
In short ‘endo’ means part of the body that is inside and ‘exo’ means part of the body that is outside in this particular matter. Hence, this is the main difference between exoskeleton and endoskeleton. Endoskeleton is what we humans have while exoskeleton is what insects and other arthropods have. Furthermore, the exoskeleton helps in excretion, but endoskeleton does not.
概括– Exoskeleton vs Endoskeleton
Exoskeleton and endoskeleton differ mainly from each other by the location of the body where it situates. Exoskeleton is present external to the body while endoskeleton is present inside the body. Thus, this is the key difference between exoskeleton and endoskeleton. Furthermore, they differ from the germ layer from which they derive. Exoskeleton is derived from the ectoderm while endoskeleton is derived from the endoderm or mesoderm. And also, exoskeleton is a rigid structure which is nonliving while endoskeleton is a flexible structure which is living.
1.Libretexts. “38.1: Types of Skeletal Systems.” Biology LibreTexts, Libretexts, 12 June 2018.Available here