The endocrine system is a collection of glands that regulate your metabolism, growth, sleep, mood and other things around your body.
Sponges are.... well.... just...... absorbent.
The body of a dog contains most of its vital organs. The heart, lungs, stomach, and intestines are located there. So too are its genitals, kidneys and bladder. A dog has 13 ribs in its chest which wrap around the heart and lungs.
Answer:
No
Explanation:
There are muliple types of bacteria that helps the human body there are also bacterias that help fish and other animals.
