Answer:
limpet
Explanation:
This has a single, "limpet-like" shell on top, which is made of proteins and chitin reinforced with calcium carbonate, and is secreted by a mantle covering the whole upper surface. The underside of the animal consists of a single muscular "foot". Although molluscs are coelomates, the coelom tends to be small.
C, it contains the information on the primary sequence of aminco acids in a protein code
Two of the above are true
It helps move wastes out of the cell and allows water and nutrients to move into the cell
Not sure what the choices are but a biotic factor is anything living.
