Topic: Human Digestive System Subtopic: Introduction
What are vitamins and functions?
Answer: Vitamins are needed in small quantities but they are important for health. vitamins are essential for our organs e.g. vitamin A for eyes, vitamin B for health, vitamin C for teeth and gums, vitamin D for absorption of Calcium into the bones and vitamin E for muscle building and nervous system.
- Where are red blood cells made?
- What happens to food in stomach?
- Which muscles make our chest move?
- What are initial effects of tobacco smoke?
- What is tobacco smoking?
- Why is cold caused?