Answer:
The answer is D, Arteriosclerosis
Explanation:
It limits the flow of oxygen-rich blood to your organs and other parts of your body. Hope this helps!
The scientific method- Form an hypothesis
conduct an experiment to test that hypothesis
So yes researchers could review his experiment and his theory to detect any possible flaws.
Scientists do this all the time
Answer:
having a genetically diverse population make a species more likely to survive a change to the enviroment because random mutations can occur in a species and if a sudden change in the environment were to occur like extreme heat for example, some of the mutations in their DNA may help them survive this extreme heat and the species will be more likely to survive
I think two because a seems to represent a blood cell and blood cells carry oxygen