Replies to: What does credit hours mean? A class is usually 3 to 5 credit hours, which roughly refers to the number of hours of lecture per week. For example, a 3-hour class would meet MWF for 50 minutes or TuTh for one hour and 15 minutes. A 5-hour class might meet everyday for 50 minutes, e.g. foreign languages.
The answer is not as complicated as some people may think and yet the method is very effective, even fatal to the predator at times. All jellyfish have tentacles which they use to not only navigate and sometimes swim depending on the species but to also protect themselves from harm.These tentacles are used by the jellyfish to sting those who are preying on them.he answer is not as complicated as some people may think and yet the method is very effective, even fatal to the predator at times. All jellyfish have tentacles which they use to not only navigate and sometimes swim depending on the species but to also protect themselves from harm.
Jellyfish Species and Their Habitats. Jellyfish species vary in greatly in appearance and size, and sometimes this fact is what dictates the type of habitat a jellyfish prefers. Smaller species of jellyfish are almost always found closer to the shore â near beaches and in harbors â in water that is not very deep.here is one rare and distant relative of the jellyfish that can live in fresh water, but in general all jellyfish live in the ocean. The largest and most common jellyfish habitat is basically the open ocean. There are species of jellyfish living in every one of the worldâs oceans.