Problem: How to study the functions of protein hormones in humans<br>Define protein hormones. Protein hormones are a type of chemical compound in the body that regulate metabolism and cell function. They are derived from amino acids (the building blocks of proteins) and facilitate signaling between cells of the endocrine system and various other cells of the body.

Based on the paragraph above can we conclude that "Protein hormones are a part of biology."?

A: Yes


Problem: How to be a perfect example<br>Smile and be friendly. This is perhaps the best things you can do. Be nice to everyone, because you never know sometime in the future, they could help you.

Based on the paragraph above can we conclude that "The best thing you can do is never smile"?

A: No


Problem: A U.S. military transport plane carrying humanitarian aid meant for Venezuelans landed in the Colombian border city of Cucuta on Saturday, where food and medicine are being stored amid uncertainty over how and where aid will be distributed. Havovi Cooper reports.

Based on the paragraph above can we conclude that "the plane landed in cucuta"?

A: