When Celia Tried to Make Use of Old Cans of Paint

question 143

Multiple Choice

When Celia tried to make use of old cans of paint by mixing them,she had expected to end up with a dramatic and bold hybrid color but instead the mixture became darker and darker in color.The colors were lost because mixing paints results in ___.

• A)wavelengths that are reflected but cancelled out
• B)more wavelengths being absorbed
• C)less light being emitted from the mixture
• D)subtractive effects

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Definitions:

IgE Antibodies

Antibodies produced by the immune system that play a key role in allergic reactions.

Allergy

An immune system reaction to foreign substances (allergens) that are usually harmless to most people, leading to various symptoms.

Phagocytosis

A cellular process where cells engulf and digest particles or other cells, a crucial part of the immune response.

Activated T Cells

Immune cells that have been stimulated by an antigen to provide an immune response against infections and diseases.