This sounds like a homework assignment, not a question! :) :)
Ruomei's new liking for biology has been conditioned.
She was 'conditioned,' aka learned to love biology because of the guy she has a crush on. Previously, she wasn't interested in biology, but when she started liking this guy, she somehow connected her attraction to him to her growing love for biology. Thus, the guy was her stimulus to become conditioned to love biology.
The annexation of Texas helped contribute to the Civil War because the issue of admitting Texas as a slave state contributed to the conflict that caused the Civil War.
Answer: Option A
<u>Explanation:
</u>
Texas was annexed to be another slave state in the plethora of southern states that were already practising slavery. The state was annexed as a slave state despite strong resistance.
This move was not welcomed by most northerners and thus resulted in an increase in the outcry against slavery which ultimately contributed to the Civil War.
