Which Change Does Not Indicate a Reduction

question 18

Multiple Choice

Which change does not indicate a reduction?

• A) decrease in oxidation number
• B) gain of electrons
• C) electrons as reactants
• D) reactant acting as a reducing agent
• E) pure oxygen becoming oxide ion

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Definitions:

Body Wall

The outermost layer of an organism's body, protecting internal organs and systems from external threats or injuries.

Gut Formation

The developmental process during which the digestive system is formed in an embryo, a critical aspect of animal development and physiology.

Vertebrates

Animals with a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.

Invertebrates

Organisms without a vertebral column, including animals like insects, mollusks, and crustaceans.