★ Consciousness and Sleep Quiz
In a typical nights’ sleep, _________ tend to dominate in the first half of the night, while ______ tend to dominate in the second half of the night.
A. REM; NREM
B. NREM 3 and 4; REM and NREM 2
C. NREM 3 and 4; NREM 1 and 2
D. NREM 1 and 2; NREM 3 and 4
Select your answer:

Topics:
How the Eyes work Bone Shapes & Long Bone Anatomy Types of Reproduction Genes, Chromosomes and Genome History of Medicine Endocrine System and Nervous System Skeletal System Weight Management Nutrition Lipid Skin Structure Uses of Radioactive Radiation Anatomy: Muscle Musculoskeletal System Responses to Exercises Injury GermsOther quiz:
Health › ViewWhat does protein do for your body?
A. Build and repair muscle
B. Aid in hormone development
C. Increase strength
D. All of the above
Pulse › View
The popliteal pulse is located:
A. inside the thigh
B. behind the knee
C. on the upper arm
D. on the lower arm