B. Skeleton Hope This Helped
Answer:
Heart disease and strokes are a very serious issue and the main causes of death 20 years ago, and even today. This means that something such as genetics or even diet is effecting health and heart problems leading to death.
Explanation:
the original line is stating that heart disease and strokes were the two leading killers 20 years ago, and they still are today so this means that heart issues are a big problem and main cause of death.
N2O5 is one of the binary nitrogen oxides.
Answer:
The biggest breakthrough came in 1921 when Frederick Banting and Charles Best conducted a series of experiments one summer in the laboratory of J.J. R. Macleod at the University of Toronto. Like Minkowski and von Mering, they showed that removing the pancreas from dogs made them diabetic.
Explanation:
