The Pacemaker Resting Potential Is _______ Negative Than Those of Other

question 67

Multiple Choice

The pacemaker resting potential is _______ negative than those of other cardiac muscle cells because the _______ channels of pacemaker cells are more open.

• A) less; Na⁺
• B) more; K⁺
• C) less; Ca²⁺
• D) more; Na⁺
• E) less; K⁺

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Definitions:

Mafia Hypothesis

A theory suggesting that certain animals, like some birds, may engage in retaliatory behavior against individuals who do not cooperate with them, akin to human "mafia" tactics.

Carotenoid Pigments

Organic pigments found in plants and certain algae and bacteria, responsible for the red, yellow, and orange colors in many fruits and vegetables, and important for photosynthesis and human health.

Signal Of Quality Hypothesis

A theory suggesting that certain traits or behaviors in animals serve as indicators of an individual's genetic quality or overall fitness to potential mates.

Hereditary

Traits or characteristics passed from parents to offspring through genes.