Select your answer:

Topics:
Movement and Locomotion Body Structures and Organ Systems Nail Biopsychology - Neuroplasticity and Functional Recovery EM Spectrum Microorganism - Diseases Physical Therapy and Rehabilitation Diseases of Digestive System Parathyroid Gland Excretory and Musculoskeletal System Biodiversity Conservation Biochemistry Lab Health Related Fitness Linked Gene Levels of OrganizationOther quiz:
Physical › ViewYou should never stretch before exercising.
A. TRUE
B. FALSE
Biology › View
the backflow of blood stops in veins by …….
A. valves
B. muscles
C. heartbeats
D. lymphatic vessels