The Term Clade Most Closely Refers To

question 70

Multiple Choice

The term clade most closely refers to:

• A) a class.
• B) a group of organisms that share common characteristics inherited from a common ancestor.
• C) a mechanism of horizontal gene transfer.
• D) a subspecies of organisms does not include a subgenus.
• E) the binomial system of classification.

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Definitions:

Orbicularis Oris

A muscle around the mouth that controls the movements of the mouth and lips, crucial in forming facial expressions and speech.

Eyebrows

The strips of hair growing above the eyes, playing a role in facial expression, communication, and protection of the eyes from sweat and debris.

Buccinators

The buccinator muscles are thin, flat muscles of the cheeks, involved in blowing, sucking actions, and aiding in mastication by pressing the cheeks against the teeth.

Platysma

A thin, superficial muscle located in the neck, responsible for lowering the jaw and drawing the lower lip and corners of the mouth down.