If the inner lining of the air sacs neither thin nor highly vascularized, then it can be inferred that AIR SACS ARE CANNOT BE THE SITES OF GASEOUS EXCHANGE BETWEEN AIR AND BLOOD. Air sacs are generally lined with mucus and surrounded with blood capillaries.
In case of birds, air sacs play an important role in respiratory system.
Answer: the tails are hydrophobic and the heads are hydrophilic
Answer:Almost 2/3 of our body store of iron is found in the hemoglobin in our blood
Explanation:
Adhesion is defined as a component of water , an attraction that occurs between two different substances like water and the cell walls of plant cells.
For instance:
A tree requires to be able to transport water from the roots to the leaves atop the tree over a long distance. The Water molecules will stick to the xylem in the method called as adhesion.
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Any astronomical body that revolves around a larger body is called SATELLITE. <span>There are two basic types of satellite, natural and artificial satellites. Natural satellites are those that occur naturally such as the moon and the earth while artificial satellites refers to man made satellites. Man made satellites are usually designed for collection of data and for communication. Artificial satellites have the ability to collect more information in a very short time compared to ground instruments. There are many different types of artificial satellites in space.</span><span />
