But the chaos of the mundane and the extreme can be well contained and addressed by keeping these four frames in mind. Jeffrey Benson is the author of ASCD's Hanging InâStrategies for Teaching the Students Who Challenge Us Most and the often cited Educational Leadership article, 100 Repetitions..
The advantage of having body cavities is that one's organs are protected by skin and bones and are shielded from direct impact and injury.he body cavity is to hold your organs. (liver, spleen, pancreas, stomach, intestines, etc. It also provides a route for your aorta to your lower extrimities.
The mantle cavity is a flesh fold of skin that houses the gills and helps the squid to swim by a process called jet propulsionThe squid sucks in water through the mantle opening. The squid shuts the mantle, a kind of locking mechanism. The squid tell its mantle muscles to contract! (using the brain and giant axon)