During middle childhood, acute medical
conditions are common and chronic medical conditions are rare.
Middle childhood is the period of time
in which a child is learning basic skills and this period can bring many
changes to life. It is the period of time from age 6 to 12.
Acute medical condition refers to a normal,
small sudden damage, like cut. But chronic medical condition is severe and long
term.
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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:
kingdom, phylum, class, order, family, genus, and species
Explanation:
Answer:
d
Explanation:
many of them become certified
