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:
<em>Digestive Processes The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.</em>
Explanation: :)
Answer:
The correct answer is chunking.
Explanation:
Chunking is a term signifying the procedure of taking single pieces of information or chunks and aligning them into bigger units. By aligning each piece into a large whole, one can better the amount of data one can remember.
Generally, the most common illustration of chunking takes place in phone numbers. By distinguishing dissimilar single elements into bigger blocks, information becomes easier to recall and retain.
Explanation:
The new research carried out by NASA on mars suggets that many of the Mars' ancient channel have been carved by flowing water, were actually formed by melt water beneath glacial ice sheets. The rocks looked familiar to the rocks found on Earth in these water channels. Moreover, conglomerate rock was found near the base of the channel on Mars.
