Select the Correct Past Participle for Each Blank

question 13

Multiple Choice

Select the correct past participle for each blank. For many decades, tungsten filaments have been ____ by makers of contemporary light bulbs, with life spans of 750 to 4,000 hours.

• A) use
• B) used

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Definitions:

Personality Traits

Enduring characteristics and behaviors that define an individual's patterns of thinking, feeling, and acting.

Differential Susceptibility

A concept in psychology that suggests that people differ in their sensitivity to environmental influences, for better or worse.

Serotonin Transporter Gene

The serotonin transporter gene is a gene that controls the expression of the serotonin transporter, which is involved in regulating mood, anxiety, and happiness.

Maternal Depression

A mood disorder affecting mothers, characterized by sadness, low energy, and difficulty in bonding with their child.