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.
U divied 9.3 with 4 i think idk
C. Changes to biodiversity can positively and negatively affect an ecosystem.
As heat and pressure increase, ductile deformation becomes more likely
Explanation:
A typical food chain will begin with an autotroph and went over numerous heterotrophs till they move to an top predator. Once the energy drifts from the structure it becomes reprocess for upcoming use in additional organisms. Autotrophs get energy and nutrients by connecting to the sunlight through photosynthesis (photoautotrophs) or, more rarely, obtain chemical energy through oxidation (chemoautotrophs) to make organic substances from inorganic ones. Autotrophs do not consume other organisms; they are, however, consumed by heterotrophs.
