Which of the Following Is TRUE Regarding Teratogens

question 62

Multiple Choice

Which of the following is TRUE regarding teratogens?

• A)Teratogens cause anatomical defects after organogenesis is complete.
• B)A fetus is most vulnerable to teratogens during the fetal period.
• C)Practically every fetus is exposed to at least some teratogens.
• D)Potential effects of most teratogens become apparent at birth.

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Definitions:

Brightness Constancy

the human visual system's ability to recognize the brightness of an object regardless of the amount of light it reflects.

Color Constancy

The perceptual phenomenon in which the colors of objects appear largely unchanged under varying lighting conditions.

Relative Luminance

A measure of the brightness of a color or light source in comparison to a reference white or bright source under identical viewing conditions.

Perceptual Organization

The psychological processes that enable individuals to perceive patterns, and structure in the environment, making sense of the world through visual, auditory, and other sensory information.