We learn about animal and plant cells. There are hundreds of millions of cells in a living creature.
Energy cannot be created or destroyed. It can only be changed from one form to the other.
These are types of renewable energy
Development of a baby
Menstrual cycle is a 28 day cycle of a woman fertilisation.
Red blood cells
Red blood cells have a donut shape so oxygen can rest in the squished down part also there issue face area. Red blood cells transport oxygen round the body. It also contains haemoglobon which helps transport oxygen. Red blood cells have flexible membrane allowing them to change shape easily.
How does a foetus get blood from the m
When a woman is pregnant the woman needs more iron for its body and the foetus. The umbilical cord carries the blood from the woman to the foetus.