A hydra typically has two cell layers: an outer layer of epithelial cells and an inner layer of gastrodermal cells. These layers are separated by a jelly-like extracellular matrix called the mesoglea.
Yes, the cell membrane is made up of two layers of phospholipids called a lipid bilayer. These phospholipids have hydrophobic tails that face inward and hydrophilic heads that face outward, providing the structure of the membrane.
A leaf is made of many layers that are sandwiched between two layers of tough skin cells
Phospholipid molecules form the two layers of the cell membrane. These molecules have a hydrophobic (water-repelling) tail and a hydrophilic (water-attracting) head, which arrange themselves into a double layer to create the lipid bilayer of the membrane.
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 :]
thin membrane made of two layers of lipid molecules.
Two layers of fat molecules sandwiching a (very) thin layer of water.
Cellulose.
capillary walls are very thin, often a cell thick. artery walls have two thick layers.
The HP touch screen is made of two very thin transparent layers with a thin space between them. When someone touches the screen, the two layers touch to become connected and what has been touched can then be read.
no cell acts as a cell wall. cell walls are made of a two layers of lipids.
Cnidarians.
It has two cell layers.
cell wall and cell membraine
cell membrane and cell wall
It's the air that insulates.
Cnidaria are diploblastic animals, in other words they have two main cell layers, while more complex animals are triploblasts having three main layers. The two main cell layers of cnidarians form epithelia that are mostly one cell thick.