In the Jia family Qing-Wen is known to be so ________ that even Bao-Yu, her master, gives in to her. （ ） A: irrational B: irascible C: irrelevant D: antagonistic

We regard him as ______ to our cause because he accepted all our suggestions without hesitation. A: amiable B: protagnistic C: antagonistic D: amenable

Which of the following is not an accurate statement? A: Hormones are chemical messengers that travel to target cells through the circulatory system B: Hormones often regulate homeostasis through antagonistic functions C: Hormones of the same chemical class usually have the same function D: Hormones are often regulated through feedback loops