Questions: They are positioned at the end of a medical term. If a suffix starts with a vowel, no combining vowel is needed.

The answer is:

• They are positioned at the end of a medical term.
• If a suffix starts with a vowel, no combining vowel is needed.

This statement is false. Suffixes are specifically defined as word parts that are added to the end of a root or combining form to modify its meaning. Prefixes, on the other hand, appear at the beginning of a term.

This statement is false. Suffixes are attached at the end of a root or combining form, not at the beginning. Prefixes are the word parts that attach at the beginning.

This statement is true. Suffixes are always positioned at the end of a medical term to modify or extend its meaning.

This statement is true. In medical terminology, if a suffix begins with a vowel, a combining vowel (usually 'o') is not needed between the root and the suffix. For example, in the term "arthritis," the suffix "-itis" starts with a vowel, so no combining vowel is used.