Answer:
I'm pretty sure the answer is A
Answer:
1.It helps to digest our food.
2.It is used as antibiotics to treat bacterial infection and disease.
3.It is used by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar.
4.It is use to break down our sewage and to clean up oil spills..
<span>connective epithelial muscular <span>nervous</span></span>
Answer:
A pigment containing melanin found in bird feathers
Explanation:
