The Last Common Ancestor of Modern Organisms Must Have Used

question 44

Multiple Choice

The last common ancestor of modern organisms must have used

• A)D amino acids.
• B)L amino acids.
• C)both D and L amino acids.
• D)either D or L amino acids.

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Definitions:

Inner Forearm

The inner forearm is the lower portion of the arm on the side opposite the elbow, commonly used as a site for patch testing due to its sensitive skin.

Allergy Testing

Medical tests performed to determine if a person has an allergic reaction to specific substances or allergens.

Parenteral Nutrition

A method of feeding nutrients directly into the bloodstream, bypassing the digestive system, used when a person cannot eat by mouth.

Antecubital Space

The inner surface of the arm at the elbow, commonly used as a site for drawing blood or administering injections.