Answer:
i think nicotine travels through blood and we know blood reaches the right ventricle first
maybe right ventricle
<span>It is composed of water and other soluble ions. About 80% of the cytoplasm is water. It also contains dissolved carbohydrates, proteins and fats.
</span><span>It is a very good conductor of electricity.</span>
Answer:
descending tracts is the correct answer.
Explanation: