Which Statement Best Reflects the Current View Regarding the Role

question 139

Multiple Choice

Which statement best reflects the current view regarding the role of leptin in hunger regulation

• A) Leptin levels apparently regulate the hunger centres located in the stomach. 
• B) An excessive amount of leptin in the brain has been associated with obesity in rats. 
• C) When leptin levels are high, hunger tends to be reduced. 
• D) The presence of leptin in the bloodstream tends to increase feelings of hunger.

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Definitions:

Circulatory System

The body system responsible for the transport of blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body, comprising the heart and blood vessels.

Bioaccumulation

The process by which certain substances, such as pesticides or heavy metals, increase in concentration in the bodies of organisms over time, often leading to toxicity.

Hormone Disrupter

Chemicals that interfere with the endocrine system, potentially causing developmental, reproductive, neurological, and immune disorders in both humans and wildlife.

Tertiary Consumer

Organisms that occupy the fourth trophic level in a food chain, feeding on secondary consumers; often top predators.