Select your answer:
Topics:
Eye Body Fluids and Blood Cells Human Eye and Colourful World Nutritional Trivia Shelter Medicine Health Issues and Concerns Breathing System Asexual Reproduction Respiration Anatomy and Physiology Neurology Tracheostomy Care Neurons Stress and Mental Health Cell Transport system in Living Things (Human)Other quiz:
Hazards & Risks › View
What is the hazard in this picture?
A. Spilled water
B. The electrical heater
C. The club socket
D. The wire under the door
Circulatory System › View
What do Red-Blood cells do?
A. Carry oxygen from the lungs to the body cells and transport carbon dioxide from the cells back to the lungs
B. keeps blood flowing in one direction to the heart and prevent blood from flowing backwards
C. Collects blood from the capillaries and drain it into the veins
D. Bring nutriients to the cells and carries away waste materials.