Arsenic, As, Is

question 112

Multiple Choice

Arsenic, As, is

• A) an essential element in the human body.
• B) toxic because it results in an increase in the production of ATP.
• C) toxic because it binds to the sulfhydryl group in proteins and enzymes.
• D) used in high concentrations in ancient cosmetics.
• E) None of these choices is correct.

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Definitions:

Derived Homologies

Features shared by descendants of a common ancestor that have undergone evolution to serve new functions.

Synapomorphies

Shared derived characteristics or traits that are used to establish evolutionary relationships among species or groups.

Common Ancestor

The most recent individual from which all organisms in a group are directly descended.

Phylogenetic Systematics

A method of classifying organisms based on their evolutionary relationships, utilizing genetic, morphological, and other data to infer a "family tree" of life.