Yellow Tube Sponge

Don't forget to reference these helpful links as needed: The Basics, Glossary, How To Read a Workout, Pacing Table. 

Warm Up
2 x 200 swim @ :15 rest
(400)

Set 1
2x through:
100 @ b +10
1 x 200 @ b -5
100 swim @ b+10
100 swim @ b -10
100 swim @ b +10
2 x 100 swim @ b -5
(1600)
Take an extra 30 seconds rest after first round before you begin second

Warm Down
8 x 25 @ :15 rest —> odds drill, evens swim

Total: 2,200

Because of its shape, this sponge serves as a home to a number of crabs, shrimp, and fish. One of the crazier things about sponges, aside from having existed for at least 500 million years, is that sponge cells do not have a specialized purpose. Each of a sponge’s individual cells can transform to complete the job of any other cell in the body. This lack of specialization means that sponges do not have tissues, like every other type of animal. In fact, in laboratory settings, a sponge that is destroyed in a blender can reform itself as the cells swim back together and take on the form and job needed for recovery.

Most sponges have a glass-like skeletal structure made of silicates, but the yellow tube sponge does not. Consequently, it has been collected for use as a bath sponge in the past. Fortunately for this species, synthetic sponges have eliminated the market for its fishery, and it is only rarely collected today.