what are some invertebrates.

sponges do not have ------.

nervous systems.

Sra

Some examples of invertebrates include insects, spiders, worms, jellyfish, and snails.

Sponges are also invertebrates. They are multicellular organisms that belong to the phylum Porifera. While sponges do not have complex organ systems like other animals, they do have specialized cells that perform various functions. However, one thing sponges do not have is true tissues, which are groups of cells working together to carry out specific functions.