The answer is B It must be testable.
<span>The "stress hormones" that were released by Benita's adrenal glands would likely be epinephrine and norepinephrine. Some studies have shown that something as simple as laughter can lower the level of stress hormones in most people. Since severe stress can lead to other health problems, it is important to get help from a medical professional to bring your stress level under control.</span>
I think the answer here is neurons, the nerve cells
<span>The correct answer is b. The open ocean. The definition of an island ecosystem does not have anything to do with water, but simply refers to an ecosystem that exists as a microcosm within a far larger, separate ecosystem. The ocean has lots of separate island ecosystems within it, but it itself cannot be referred to as one.</span>
