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stiks02 [169]
3 years ago
7

What specific key factor starts the breathing process in a newborn infant?

Biology
1 answer:
kvv77 [185]3 years ago
4 0
Chemical factors: This is due to internal stimuli. Changes in the blood such as decrease in O2, increase in CO2 and decrease in PH cause impulse in the carotid artery which stimulates the respiratory centers in the medulla and cause breathing.

Mechanical factors: also called external stimuli. Compression of the fetal chest during delivery forces small amount of lung fluid out of the lungs. This increase in pressure in the chest draws air into the lungs.
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In the same mouse species, a third unlinked gene (gene C/c) also has an epistatic effect on fur color. The presence of the domin
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Answer:

agouti - aaBbCc

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Antibiotics can lead to septic shock if used to treat what
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The area around the Sahara Desert is slowly changing into a dry region, similar to the desert. Which trait is most likely to be
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Please mark me as brainliest :D

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