Multicellular organisms can be made up of billions of cells. how do you think having specialized cells is an advantage for a multicellular organism? !

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.