In the Accompanying Figure, the Item Marked 2 Indicates a Message

question 27

Multiple Choice

In the accompanying figure, the item marked 2 indicates a message that has been ____.

• A) forwarded
• B) read
• C) replied to
• D) previewed

---

Definitions:

Mitochondria

Organelles within cells that are responsible for producing energy through the process of oxidative phosphorylation, often called the powerhouse of the cell.

RNA World

Hypothetical early interval when RNA served as genetic material.

Peptide Bonds

Chemical bonds formed between amino acids during protein synthesis, linking the carboxyl group of one amino acid to the amino group of another.

Protocells

Simple, self-organized, prebiotic structures that mimic living cells, thought to be key in the origin of life.