The __________ Is Where Nutrients and Wastes Are Exchanged Between

question 146

Multiple Choice

The __________ is where nutrients and wastes are exchanged between the mother and the developing organism.

• A) germ disc
• B) placenta
• C) ectoderm
• D) amnion

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Definitions:

Air Passageways

The routes throughout the respiratory system, including the nose, throat, windpipe, and lungs, through which air is inhaled and exhaled.

Radioactive Chemical

A substance that contains unstable atoms which release radiation as they decay.

PET Scan

Positron Emission Tomography, a sophisticated imaging technique that uses radioactive substances to visualize and measure changes in metabolic processes and in other physiological activities including blood flow, regional chemical composition, and absorption.

Tracer

A radioactive substance used in medical imaging or scientific research to track the presence or distribution of substances within the body or environment.