Answer:
a scientific question is a hypothesis. which has to be testable.
Explanation:
If you have any questions feel free to ask in the comments - Mark
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Mitochondria creates power for the cell which is why the are sometimes referred to as the powerhouse of a cell
Answer:
its non of the above is ectotherms
The membranes that surround and protect the brain and spinal cord are called meninges.
Seat belts and airbags were inserted into cars around the time of the late 1950s so the rate of death during a car accident would decrease because people are more likely to survive. And then in 1991 Side Impact Protection System (SIPS) was placed into cars again reducing fatalities during a car incident as people became more protected. :)