Answer: Stem cell research has the potential to treat diseases that are currently burdened with high health care costs—especially chronic conditions such as heart disease, Alzheimer's disease or diabetes, the costs of which threaten to cripple the healthcare system.
Answer:
b. a person has an emotional need for a drug
The property of water that allows water to rise in these narrow tubes is Cohesion of Molecules.
True
Crossing over involves homologous chromosome pairs "crossing over" and exchanging genetic information.
I have attached an image that might help you understand the concept a bit better.
I hope this helps! I'm happy to answer any other questions you might have :)
[Image sourced from: http://www.qsstudy.com/biology/define-crossing-importance]