The correct answer would be 4 I believe
Quick answer: Food enters the human digestive system through the mouth before then moving through the pharynx, esophagus, stomach, intestines, rectum and anus.
"climate" does not.
Usually if we comparing "weather" condition with another word, the word would be "climate". Weather is the day to day atmospheric condition, but climate is the overall weather of an area throughout long period of time, such as a decade.
Using it in a sentence, we can see the difference. We would say "the weather today is nice", but we wouldn't say "the climate today is nice". "today" is a short period of time.
The DNA is condensed before replication in the form of chromosomes and then the chromosomes are divided.