Psuedostratified columnar epithelium
All of the above
Carbohydrates-breads
Lipids-avocados,dark chocolate and cheese
proteins-Eggs,pumpkin seeds,oats
Nucleic acids-shrimp,milk
Answer:








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Description
The cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to duplication
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.
<span>This variation be justified by:
</span>Migration to an environment different from their birthplace, and adaptation to the available food, ultimately leading to speciation. because <span>birds use their beaks to eat.</span>.
