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serg [7]
3 years ago
9

When and how do scientists think sponges evolved?

Biology
2 answers:
solniwko [45]3 years ago
7 0
<span>They are stuck to the floor in the oceans, sea, and rivers. They are known as Porifera. The Poriferans are simple multi cellular animals. </span>Sponges<span> are very primitive creatures that scientist think </span>evolved<span> around 500 million years ago </span>
Pavel [41]3 years ago
6 0
Scientists think sponges evolved from protists very early in the Cambrian period. In fact, the flagellated collar cells in sponges bear a striking resemblance to the cells in a group of colonial protists. this similarity has led scientists to hypothesize that sponges evolved from such colonial protists. 
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