Sponges, Cnidarians and Worms. Washington State K–12 Learning Standards and Guidelines.
Washington State K–12 Learning Education Standards and Guidelines. Until recently, people thought that sponges were plants. The fact that they take in food puts them into the animal kingdom. When they are adults, they do not move. They attach themselves to a hard surface where they live out their lives. The structure of a sponge is very basic with some specialized tissue, but lacking organs and organ systems. Read More...
The resources above correspond to the standards listed below:
Washington State K–12 Learning Standards and Guidelines
WA.MS-LS. LIFE SCIENCE
MS-LS1. From Molecules to Organisms: Structures and Processes
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