| Question | describe the flow of blood into and out of the right atrium |
| Answer | deoxyganated bloodfrom the body via vena cavato the right ventricle |
| Image |
| Question | Explain how an atom’s electron arrangement changes when it absorbs EM radiation |
| Answer | Electrons move further away from the nucleus They move to a higher energy level |
| Image |
| Question | at what point has one species evolved to form a new species? |
| Answer | when they have become so different in phenotype they can no longer interbreed to produce fertile offspring |
| Image |