Answer:
They need to see whether the chemical has been tampered with or not. If the cap has been tampered with then it could mean somebody opened the product and possibly changed something in chemical. Doing this can help prevent from something dangerous happen.
Explanation:
It could be ex peculated that after confronting the teacher, Marcus would back down because he might feel threaten. The teacher asked him if he knew that "Zero - tolerance mean" and that could be taken as a tense situation, he might have to options. To apologise to him or face the consequences within this "zero tolerance" atmosphere. <span />
The evolution of the eohippus into the modern day horse is an example of metamorphosis.
A character change would be internal, stasis means to remain the same and extinction is the end of an organism, the eohippus is extinct, but the question is asking specifically about it's change. Therefore choice 4 is the correct answer.
