I think it would be D or B
Nicotine in smoke has two forms; the electrically neutral form is more easily absorbed through the mucous membranes of the mouth, nose, and lungs.
<h3>Where is nicotine absorbed the most?</h3>
- Nicotine is absorbed through mouth mucous membranes and reaches peak blood and brain levels more slowly in people who do not inhale the smoke, such as cigar, pipe, and smokeless tobacco users.
- By "riding" in with the tar that is inhaled from a lit cigarette, nicotine enters the body. About 8 seconds after inhaling the smoke, the nicotine/tar mixture enters the lungs, where it is swiftly absorbed. It can move to the brain once it reaches the bloodstream.
Learn more about the Nicotine with the help of the given link:
brainly.com/question/15241838
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Answer:
B. They are among the most productive types of ecosystems.
Explanation:
The estuaries provide migratory birds a place to rest. for example.
Answer:
Car 1 will roll down the ramp and exert a force on car 2. The force experienced by car 2 is measured indirectly using t<u>he distance it travels or its speed
.</u>
. If the force increases, car 2 will travel <u>slower or farther</u> The independent variable, or what’s being manipulated in the experiment, is <u>the starting height of car 1 or the type of bumper attached to car 2
</u>
he dependent variable, or what’s responding, is <u>the distance car 2 travels or the speed of car 1
</u>
The height and starting position on the ramp are constants in this experiment.
Explanation:
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