Members of the porifera phylum have
a. no skeleton.
b. an exoskeleton.
c. an endoskeleton.
d. either an exoskeleton or endoskeleton, depending on the species.

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.

Me with biology endocrine system crossword also image left i need with hw

Where in the cell are ribosomes made?