Nasal decongestants phenylephrine and pseudoephedrine act to shrink dilated blood vessels in the nasal passages to relieve congestion. they are called sympathomimetics because they act similar to sympathetic neurotransmitter norepinephrine. which of the following would be an undesirable side effect associated with their use? a. nervousnessb. muscle achesc. arm numbnessd. drowsiness

A- Nervousness

Explanation:

Although mild compared to the major chronic side-effects, like vomiting, If persistent, could lead to an increase in blood pressure due to possible anxiety.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.