The unit rate of the train in miles per hour is; 45 miles per hour
Distance traveled by train; d = 540 miles
Time of travel; t = 12 hours
Unit rate here will be the distance travelled per hour.
Formula for the unit rate here is;
Unit rate = distance travelled/time taken
Unit rate = 540/12
Unit rate = 45 miles per hour
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Since pathogens are easily passed from person to person, they need large populations to spread and survive. If they did not have a large population, the pathogens would die out.
Answer: Parietal pericardium
Explanation: The Parietal pericardium - very thick fibrous serous membrane that forms a loose fitting sac around the heart & lines the wall of the pericardial cavity.
Answer:
In my opinion, the absolutely most needed action potential passes through the medium of saliva carrier secreted in the form of bile along a nerve of a living organism or body
Capillaries in the skin are more specialized to release heat from the body while capillaries in muscles are specialized to carry and release large amounts of oxygen
