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Thesis Statement About Jellyfish

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Thesis Statement About Jellyfish
Jellyfish and Ocean Currents

Mrs. Haske

English 11

December 4, 2012

Outline

I Introduction
A. Statements about jellyfish
B. Thesis statement: Jellyfish are mysterious creatures that live almost anywhere in the water and depend on ocean currents to move as well as create them.
II Body
A. What are jellyfish?
1. History of the jellyfish
2. Description of the jellyfish
a. Where their body parts are located and what they do
i. Ability to see ii. When they sting and the location of the stingers iii. How they eat iv. What they look like
b. How they function
i. Without a brain ii. Communication iii. Reproduce
3. Movement
a. Ocean currents
b. Contracting
…show more content…
Jellyfish float, drift and sink with the ocean currents (“Jellyfish”). Currents regulate the jellyfish’s horizontal movements (Watson). The currents along with movement of their own allow the jellyfish almost full movement of anywhere they would have to go. Jellyfish have elastic like fibers that help to adjust and maintain their shape. Their bell has muscles running both radially and in circles (Lovett 20). This helps them to control their movement in pulsating motions. Jellyfish do need water to breathe (Dickerson). They live in the water all of the time. Jellyfish mainly live in oceans but they can live in any source of water that has a connection with the ocean (Dickerson). They love tropics and cold water and can be primarily found in the deep sea but they can be found all over (Dickerson). Jellyfish move in two ways. The first way is when they tighten up their whole bodies and push the water out from around their bell. Their second mode of transportation includes ocean currents. When moving vertically they drag denser water towards the surface (Dickerson). The ocean currents help the jellyfish out a lot with their mobility but they can also be very harmful. Strong currents can tear a jellyfish from its tentacles leaving it immobile; they can also strand a jellyfish on a beach where they dry up and die (“Jellyfish”). The ocean currents have a lot to do with jellyfish movement and

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