Zygote: A fertilized egg. Our modern understanding of changes that take place within the embryo can be traced to the rise of the cell theory in about 1838. Scientists finally discovered the process by which sperm cells from a male and egg cells from a female combine to form a zygote.
Your diet should include other proteins beyond chicken, such as fish, beans, eggs and meat, and a well-balanced diet also includes dairy products such as milk, cheese and yogurt and grains such as bread, rice and cereal.
Fruit and vegetables are full of vitamins, minerals and fibre, and help keep your body in good condition. You should aim to eat five 80g portions of fruit and vegetables every day. Read more about good food, healthy eating and getting your 5 a Day.