forty-six layers
forty-six layers
2 layers of lipids.
71 microscopic layers
2 layers
3
there are three
The body has three tissue layers and a fluid-filled false body cavity, meaning the cavity is between the inner and middle layers rather than the middle layer and the outer layer, as it is in complex animals.
No, roundworms are not diploblastic; they are triploblastic. They possess three germ layers: ectoderm, mesoderm, and endoderm. This classification places them in the group of animals known as triploblastic organisms, which also includes most other animals, including vertebrates and many invertebrates. Diploblastic organisms, like cnidarians, have only two germ layers: ectoderm and endoderm.
Three
2
there are 2 layers. one for each side. like a sandwich and the layers are the bread. there are two of them so they can hold together the inside :]
There are 2, surrounding a water layer.