Sponges have no “true tissues.” What does this mean?
What does it mean when we say that sponges lack "true tissues"?
A. Their body functions are carried out through diffusion.
B. They possess organs specialized for specific functions.
C. Similar cells do not work cooperatively.
1 Answers
C.Sponges have cellular-level organization, meaning that that their cells are specialized so that different cells perform different functions, but similar cells are not organized into tissues and bodies are a sort of loose aggregation of different kinds of cells. This is the simplest kind of cellular organization found among parazoans.
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