Question

what does the stomach do? select all that apply. it provides a barrier against contaminants found in the environment. it uses acid to break down food. it receives signals from the bodys senses. it stores solid waste before it is released from the body. it removes waste from the blood.

Explanation:

The stomach secretes gastric acid to break - down food. It is not involved in providing a barrier against environmental contaminants (skin and respiratory tract do this), receiving signals from body's senses (sensory organs do this), storing solid waste (large intestine does this), or removing waste from the blood (kidneys do this).

Answer:

It uses acid to break down food.