A ____ Cipher Rearranges Letters Without Changing Them

question 27

Multiple Choice

A ____ cipher rearranges letters without changing them.

• A) substitution
• B) block
• C) loop
• D) transposition

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Definitions:

Mesoderm

The middle layer of an embryo in multicellular organisms, giving rise to muscles, bones, and the circulatory system among other structures.

Water-Vascular System

A network of hydraulic canals unique to echinoderms, such as starfish, used for locomotion, feeding, and respiration.

Exoskeleton

External skeleton of some invertebrates; hard external parts that muscles attach to and move.

Shed

To cast off or discard something, such as skin or hair, through a natural process or to describe a simple, single-story structure used for storage.