If humans live in houses they survive the house is the structure and the function is the humans
With the exception of echinoderms, invertebrates are protostomes; chordates, echinoderms and vertebrates are deuterostomes.
To make sure that your hair is tied up and AWAY from your face. any items to keep you safe from chemicals is worn (gloves, masks, closed toed shoes, etc.) dont touch anything unless your teacher tells you to.