Pressure is the pressure exerted by blood on the walls of the vessels.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

ya the other dude is right

idk let me see fdfdgdg