The answer is alveolates. The sac-like structures under their plasma membrane are called alveoli. The alveoli provide support to the plasma membrane. Examples of groups of alveolates are ciliates, such as Paramecium, dinoflagellates, apicomplexa, and foraminifera. They lie under the phylum, Ciliophora.
It would be a <span>Myxedema Coma.
Please let me know if this is correct!</span>
It would be B. the mixture became warm, as a change in temperature is certain evidence that a chemical reaction has taken place.