____ Is the Active Ingredient in Heet ® and Methacin

question 90

Multiple Choice

____ is the active ingredient in Heet ® and Methacin ® , and Pain Doctor ® , which are pain relieving creams that are over the counter preparation.

• A)aspirin
• B)resiniferatoxin
• C)capsaicin
• D)RTX

---

Definitions:

Domain

(1) A structural and functional region of a protein. (2) The broadest taxonomic category; each domain includes one or more kingdoms.

Paraphyletic Group

A group of organisms that includes an ancestral species and some, but not all, of its descendants.

Common Ancestor

The most recent shared ancestor among different species or individuals from which they have descended.

Evolutionary Lines

Paths of descent or lineages that show the evolutionary history and relationships among organisms.