69
there are two layers inner and outer layer of a blood cell.......
2 layers of lipids.
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 :]
The Hydra was one of the many monstrous offspring of Typhon and Echidna.
It is not a single cell. It if a fully developed animal. It's a very cool one at that. It has stinging cells and tentacles with which it catches its prey. It can swim around or attach itself to something and stay there. It swallows its prey whole. Since it has only two layers of cells if you have one you can see through it and watch its prey being digested. How cool is that?
two layers but so have three
This is a trick question. Because hydras are only two cell layers thick, they do not have a true circulatory system. The inner cell layer absorbs materials directly from their gastrovascular cavity. So a hydra doesn't have blood!
forty-six layers
there are two layers inner and outer layer of a blood cell.......
71 microscopic layers
2 layers of lipids.
2 layers
3
there are three
Hydra is in the phylum of the cnidarians which is a radical symmetry. so ectoderm, the outer layr which form the nerve sytem. Also, the endoderm, the inner layer are presented in the hydra.
i do
2