The answer is C because if a doctor only tested new medication on one person then gave it to many other people with the same disease there might have been a mistake and could kill people
Answer:
Double Helix
Explanation:
It is called the double helix for the signature shape that a DNA strand takes.
There is a valve at the meeting point between each ureter and the bladder prevents the back flow of urine from the urinary bladder to the kidney
Answer:Both release carbon into the atmosphere, but burning fossil fuels releases CO2 at a much greater amount.
Both cellular respiration and combustion require a core fuel for the process to happen at all.
D. I think but I’m not 100% on that