Animal dander would be the answer you're looking for.
Hope this helps :)
I think d all of the above
Enzymes come from the pancreas.
What are Enzymes?
Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down. All living things have enzymes. Our bodies naturally produce enzymes.
The small intestine, not the stomach, is where carbohydrates are chemically broken down. The chemical breakdown of digestible carbohydrates is completed by disaccharidases and pancreatic amylase. The circulation carries the monosaccharides to the liver after absorption.
To learn more about pancreatic enzymes click on the link below:
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Answer: D, Scientists cannot predict what other unintended effects large concentrations
of iron may have.
Explanation: just took quiz ap3x