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Biological Evolution: Unity and Diversity: Vertebrates and Invertebrates
Sponges
Description
Sponges
Sponges are simple, water-dwelling animals that belong to the invertebrate group called Porifera. Unlike most animals, sponges lack tissues, organs, and a nervous system. Instead, their bodies are made of specialized cells that work together to filter water, capture food ...
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Transcript
You’ve probably used a sponge to clean dishes. But did you know that household sponges were inspired by real sponges that live in the sea?
They are one of the earliest groups of animals on Earth and belong to the phylum Porifera, which means ‘having pores’.
Sponges don’t have true tissues or organs. Instead, they are made of a few sp...
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