Final answer:
Hair does not trap air or significantly affect ultrasound waves' ability to penetrate the body.
Step-by-step explanation:
The statement 'Hair traps air and will reflect the ultrasound beam before it enters the animal' is False. Hair is not a good reflector of ultrasound waves and does not trap air. Ultrasound waves can easily pass through hair and penetrate the body to create an image of internal structures.
Ultrasound technology relies on the ability of sound waves to travel through different materials, including hair. When an ultrasound beam encounters an interface between two different tissues, such as skin and muscle, a portion of the beam is reflected back to the probe while the rest continues to penetrate deeper. This reflected beam helps in constructing the ultrasound image. However, hair does not significantly affect the ability of ultrasound waves to penetrate and reflect accurately.