The Four Most Abundant Chemical Elements in Living Systems Are

question 7

Multiple Choice

The four most abundant chemical elements in living systems are:

• A) hydrogen, oxygen, sulfur and phosphorus.
• B) hydrogen, carbon, nitrogen and oxygen.
• C) sodium, potassium, carbon and oxygen.
• D) sodium, potassium, nitrogen and sulfur.
• E) carbon, nitrogen, oxygen and potassium.

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Definitions:

Perception

The cognitive process of interpreting sensory information to understand and interact with the environment.

Top-Down Processing

The use of preexisting knowledge to organize individual features into a unified whole.

Perceptual Set

A psychological factor that influences how an individual organizes and interprets sensory input, based on expectations, emotions, culture, and previous experiences.

Bottom-Up Processing

The analysis of the smaller features to build up to a complete perception.