Answer:
I think it's A " The train must be able to complete the trip in six hours "
The esophagus is a long, thin tube that connects the throat to the stomach. It forms the important piece of the gastrointestinal tract and functions as the conduit for food and liquids that have been swallowed into the throat to reach the stomach
The sequence of nitrogenous bases. Think of adenine guanine cytosine and thymine, and how they are ordered
Answer:
The correct answer is - option A. A difference in the cultural display rules.
Explanation:
Social or cultural displays rules are a social cluster or group and informal cultural norms to express their emotions in the correct way which are specific to cultural or social groups.
Pedro is an exchange student which makes his social norms different than the social norms or cultural display rules which cause difficulties to deal with the people and classmates.