The scyphozoans are
a. the box jellies
b. thed sea anemones, sea pens, and corals
c. the medusa-shaped jellyfish class

(c). the medusa-shaped jellyfish class

Explanation:

Scyphozoa can be defined as a class of jellyfishes, in which medusa form is dominant. Generally, organisms belong to this class show two forms during their life cycle, medusa and polyp.

The medusa form represents a free-floating form, with an umbrella shaped body. Like other medusae, scyphozoans eat fish and crustaceans by using nematocysts. True jellyfishes are examples of scyphozoans.

Thus, the correct answer is option (c).

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.  

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.