A true Coelom develops completely within the mesoderm. It is also referred to as a body cavity passing down the trunk of some organisms <u>which originates through the splitting of the mesoderm during the initial stages of embryonic and later fits inner to it</u>. Organisms that have a Coelom contain complex structures and are found higher in the taxonomic order. i.e. the Coelomates
The areas which are affected by lake effect snow belts are called Snowbelts i.e. areas east of the great lakes, the west coasts of northern Japan, the Kamchatka Penisula in Russia and areas near the Gret slat lake, Black Sea, Caspian sea, Baltic Sea, Adriatic Sea and parts of the northern AtlanticOcean.
It's C. change over time. Happy to help!
