Answer:
All options about the enzymes are true
There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the body's exterior.
The mouse's offspring are more than likely either not going to survive birth and or be deformed
D. before cells without a true nucleus
