The alveoli are lined with mucus and are surrounded by a network of blood capillaries. They have very thin walls for gases to be absorbed through. An individual air sac is called an alveolus. The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly.
"Protein" helps in packaging of DNA<span> in eukaryotic chromosomes
Hope this helps!</span>
Answer:
Binds to extracellular structures and is important in cell recognition and lubrication of the cell surface.
Explanation:
They form a peri-cellular matrix around the cell and is observed as a fuzzy cell coat under a microscope. Glycocalyx molecules are mostly made up of carbohydrates bonded with lipids and proteins. They are significant in cell adhesion especially in tissues and for protection in prokaryotes. These molecules are also important in cell-to-cell communication and recognition.
True, because if the world gets warmer, glaciers will melt, causing there to be more available water. If the world gets cooler, glaciers will form, causing there to be less available water.
The answer would have to be A) because cold air is dense so it is able to quickly plow a warm air mass ahead of it.
