CO2 levels of the blood are elevated. CO2 is a acid
Answer:
a stimulus a thing or event that evokes a specific functional reaction in an organ or tissue
Explanation:
for example if you are ticklish- a feather may be consitered a stimuli to your touch senses
Answer:
A. subsequent pregnancies spaces 18 or more months apart
Explanation:
This seems to be less likely for a premature birth because it is recommended that a mother should wait at least 18 months between giving birth and getting pregnant again. This is the minimum time span for a safe and successful pregnancy.
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- massmaster34
The best way that Drew can increase his stamina is by alternating between walking and running.