The main role of this system is to provide the gas exchange between the blood and the environment. Which body parts perform this
function?
A) nose, trachea, lungs
B)brain, spinal cord, peripheral nerves
C)heart, blood vessels, blood
D)mouth, esophagus, stomach
1 answer:
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Answer:
osmosis
Explanation:
I hope this help
Answer:
Stimulation of thoracic or lumbar spinal regions; impulse reaches chain ganglion; acetylcholine release
Explanation:
127 million would be the population.
The answer is attached in a file read it.
I believe it would be answer choice 1
