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Because they are living animals, like starfish and sea cucumbers.

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13y ago

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Related Questions

Biologist classify animals into major groups called?

phyla?


Why did biologist once classify most protist as animals?

because


Why do biologists classify sponges as animals?

Sponges belong to a group of animals that scientists classify as Po-lifer and are among the simplest of animals, lacking tissue and organs. They filter water through the various chambers within it, absorbing nutrients


What did early scientists classify sponges as?

Early scientists classified sponges as plants because of their stationary nature and lack of obvious sensory organs. It was not until the 18th century that sponges were recognized as animals due to their ability to move, feed, and reproduce like other animals.


Why do scientists classify a sponge as a simple animal and not a plant?

Scientists classify sponges as simple animals because they are multicellular organisms that lack tissues and organs found in more complex animals. Sponges also feed by filtering particles from water, which is a characteristic of animals rather than plants.


What did early scientist classify sponges?

a plant


What is sponges plants or animals?

Sponges are animals of the phylum Porifera


Are sponges autotrophs?

No. Sponges are animals, which are heterotrophic.


What group can you classify a vertebrate animal into?

Ok vertabrates are animals with no back bones witch can be: sponges, echinoderms, celentrates, ( idont remember how to spell it) that's all i can remember.


Why do scientist classify sponges as a simple animal and not a plant?

It eats zxcv


What species are sponges?

Sponges are animals of the phylum Porifera.


What group are sponges divided into?

Sponges are animals of the phylum Porifera