answersLogoWhite

0

to protect it's soft and delicate body.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

Which of the animal phyla was the first to evolve three germ layers?

The first animal phylum to evolve three germ layers was the Cnidaria. These germ layers are the ectoderm, endoderm, and mesoderm, found in more complex animals for the development of different structures and organs.


Do arthropods have three embryonic germ layers?

Phylum arthropoda does fall under the Protostomia clade characterized by bilateral symmetry and three germ layers.


How many germ layers do annelids have?

They have two layers the endoderm and ectoderm.


Does porifera have 3 germ layers?

No they do not. I am not certain as to whether they have 0 or 2 germ layers but it is one of the two.


How many germ layers do pigs have?

Three cell layers known as the ectoderm, mesoderm, and endoderm. They are also referred to as the primary germ layers, because all of the organs and tissues of the embryo will be formed from them.


What are the three types of germ layers that form tissues and organs in sea urchins?

the three germ layers on a squid are the ectoderm, endoderm and mesoderm


How many tissue layers do phylum platyhelminthes have?

There are three layers: ectoderm, mesoderm, and endoderm.


Which phylum does not have a germ layer?

hello have a nice day,,, For that question, only phylum mollusca does not have a germ layer.. am i correct??


How many germ layers do chordata have?

First one has three and the second one has two germ layers.


What are the layers in the gastrula?

The three primary germ layers in the gastrula are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer). Each layer gives rise to different tissues and organs in the developing embryo.


How many germs layers do insect have?

Insects have one germ band that grows. There are three germ layers which can be found on most insects and are responsible for development.


Which phyla have only two germ layers?

Phyla that have only two germ layers are Cnidaria and Ctenophora. These phyla are considered diploblastic, meaning they develop from two embryonic germ layers: endoderm and ectoderm. organs. This is in contrast to triploblastic animals, which have three germ layers (endoderm, mesoderm, and ectoderm).