Answer:
D) is the answer because it only allows particular molecules to get in and out
Answer:
at least two weeks
Explanation:
that's why during depression screenings, they ask about your mood/behavior over the past 2 weeks
D) Nicotine. Just one thing you need to memorise
Pasta and rice can be preserved for a really long time as well as beans if not cooked so i would say the answer is B.