Answer:
Chronic hepatitis B and hepatitis D
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.
QuestionQuestionQuesQuestionnonumberno number.
1 answer -True
2 answer-False
A because if you are going down deeper into the ocean, you are going farther away from the sun so it will become colder.
