Answer:
The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. ... While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine.
Answer:
the female sea otter has 1
Explanation:
Swim Bladder is the answer for sure
There's a great picture that I attached below that is a great representation