The first one means that you tried to stop feeling nervous or you tried to swallow so much that you couldn't.
The second one means that you are getting more nervous, or anxious.
Hope this was helpful!!!^_^
I'm assuming an article is not a part of speech. Next, I'm going to go with v, as there are no contractions or abbreviations in bacteria. For 3, they are both organisms, and that is a noun, so A. For Part B, "The death of an animal means life for fungi because as fungi decompose the organic material from the animal, they also consume nutrients from it." Hope this helped.
They are basically categorized by habit, populations, groups of animals, ecosystems. <span />
