Melissa uses a sunscreen with an SPF rating of 20. What does this rating mean?
A) She is protected against the full range of ultraviolet radiation.
B) She can stay in the sun for 20 minutes without getting tanned or burned.
C) She can stay in the sun 20 times longer without getting burned than if she had not used it.
D) Her sunscreen contains 20 different ingredients to block ultraviolet radiation.
C) She can stay in the sun 20 times longer without getting
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Which of the following statements is correct?
A. Two myofibrils intertwine and form a single muscle fiber. B. Increased protein synthesis in the myosin and actin myofibrils causes myofibrillar hypertrophy. C. People who train for strength and power will be training for sarcoplasmic hypertrophy. D. Muscle cells are the basic sub-unit of sarcomeres. E. Myofibrils are the basic contractile element of a muscle.
The objective of meditation is to ____.
A. help relieve chronic pain and increase pain tolerance B. gain control over one's attention by clearing the mind and blocking out the stressor(s) responsible for the higher tension C. attain a higher level of spirituality and peace of mind D. master a technique of mind control E. promote tranquility and reflection through postures that combine meditation and dance
The pinna is made mostly of cartilaginous tissue
Indicate whether the statement is true or false
Due to their diminished sense of taste and smell, smokeless tobacco users tend to add more ____ to their food
A) ?water and salt B) ?water and sugar C) ?salt and pepper D) ?salt and sugar E) ?spices