Answer:
It fills up with waste liquids (known as urine) and swells up to store more of the waste fluid.
Explanation:
Respiratory surface must be moist so gasses can diffuse across cell membranes
cells lining respiratory surface are thin to optimize gas fusion
respiratory surface are must be large to allow for adequate gas exchange
Answer:
The answer is option C.
synthesis of DNA
synthesis of endoplasmic reticulum
Hope this helps.
