Questions with the keyword 'blood'
- How come when you stand on your head it starts to throb but when you stand on your feet they don’t? by danai to Indi, Jarv, John, Ken, Vicky Comments: (No comments so far )
- Why is blood red when it reaches oxygen ? by claire13 to Indi, Jarv, John, Ken, Vicky Comments: (No comments so far )