Diffusion Is the

question 59

Multiple Choice

Diffusion is the

• A) random movement of the particles of a substance from a region of lower concentration to a region of higher concentration.
• B) only means by which respiratory gases are exchanged between the respiratory medium (air or water) and the internal body fluids of an animal.
• C) active movement of the particles of a substance to a region of higher concentration.
• D) active movement of a substance to a region of lower concentration with help from a protein.
• E) mechanism by which carbon dioxide moves from an area of low concentration to an area of higher concentration.

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Definitions:

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Non-verbal communication through gestures, posture, and expressions, conveying emotions or intentions.

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the condition of being pregnant occurring in a female who is aged between 13 and 19 years old.