Specialised

2. This type of blood cell carries oxygen
3. These are tiny tubes that carry water up plants
10. These are single cells that can cause disease
11. This is the name for a nerve cell that carry electrical messages around our body
13. This is group of cells that work together like nerve, skin and muscle
16. This type of blood cell defends us against diseases

1. All living organisms are made of these
4. These cells contract to move our skeletons
5. This is a group of tissues that work together to do a job, like the heart, lungs and brain
6. These cells have a tail and lots of mitochondria for energy
7. These cells form a waterproof barrier around our body
8. These cells contain lots of green chloroplasts to absorb light
9. This is an adaptation of a root cell to increase the surface are to absorb more water
12. These cell fuse with the sperm at fertilisation
14. This is a group of organs that work together like the circulatory and skeletal
15. These are tiny hair-like parts of cells that remove dirt from our windpipe