David is 6'3", 230-pound middle-aged man who feels tired all the time and suffers a variety of issues, including sleep difficulties, irritability, memory issues, and depression.
Use each term below to explain why David might be having those issues
1. Sleep deprivation (sleep debt)
2. Stage 3 sleep
3. REM sleep
4. Sleep apnea
5. Suprachiasmatic nucleus
6. Alcohol

Is made of materials that are poor conductors, such as glass, plastic, or rubber. they are used in an attempt to keep an electrical current within safe boundaries. for example, the plastic coating on an electrical wire is and is designed to keep the electricity in the wire

Eva is a customer service representative. while attending to a customer, she avoids , thus exhibiting a positive employee trait. reset next

Technician a says the harmonic balancer may be attached to the crankshaft using a woodruff key and center bolt. technician b says the harmonic balancer may be attached to the crankshaft using a square key and center bolt. who is correct? choose one answer. a. technician a b. technician b c. both technician a and technician b d. neither technician a nor technician b