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About ________ of All U

question 204

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About ________ of all U.S. households own stock in corporations.


Definitions:

Sponges

Simple aquatic animals that draw water containing food particles into their porous bodies by means of flagellated cells.

Hydras

A type of small, freshwater organisms from the phylum Cnidaria, known for their regenerative abilities.

Flatworms

Invertebrates such as planarians and tapeworms with extremely thin bodies, a three-branched gastrovascular cavity, and a ladder type nervous system.

Earthworms

Segmented invertebrates that play a crucial role in aerating soil and breaking down organic matter.

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