Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

The Life Cycle of a Jellyfish

The life cycle of a jellyfish.
by

Beth X

on 5 June 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of The Life Cycle of a Jellyfish

By Bethany X The
Life Cycle of a
Jellyfish Stage 1 - Birth The female and male jellyfish mate.
The female produces an egg.
The male gives it a sperm through
its mouth. The sperm,
which is a swimming cell,
fertilizes it and eventually
the eggs hatch. Stage 2 - Planula When the eggs develop enough,
they hatch and out comes one or more planula.
The planula is a tiny oval structure whose outer surface is covered in tiny hairs called cilia.
The cilia propel the jellyfish, which floats a few days at sea, then drops down onto
coral, attaches itself, and begins the next stage. Stage 3 - Polyp When the planula is settled
on a coral, it turns into a polyp.
The polyp doesn't move and it has a stalk and looks like a cylinder. The base is a disk and the top is a mouth with tentacles. The polyp grows and more polyps grow from its stem. When
all the polyps reach a specific
size they begin the next
stage. Stage 4 - Ephyra When the polyps are ready to transform, the stalk part of the polyps develop deep horizontal grooves. The grooves deepen until the polyp looks like a sack of saucers. The topmost groove grows fastest and eventually goes off as a tiny baby jellyfish called a ephyra. Stage 5 - Medusa The medusa is the adult form of a jellyfish.
It is the form of a jellyfish that is most recognized.
The medusa form consists of an umbrella-shaped body called a bell, a fringe of tentacles that hang from it and a mouth in the underside of the bell. Bibliography http://www.jcu.edu.au/stingers/biology%202lifecycle.htm

http://animals.about.com/od/cnidarians/a/lifecyclejellyf.htm

Google Images

http://www.dnr.sc.gov/marine/pub/seascience/jellyfi.html

http://animals.about.com/od/cnidarians/a/lifecyclejellyf.htm Box Jellyfish And when the medusa mates the cycle begins again...
Full transcript