PLS HELP AND PUT THEM IN ORDER

Name the organs of humanelemintary canal.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

What is used to keep track of the gamates and possible offsprings combination