Answer the following question given this paragraph: 

Arthropods are invertebrates in Phylum Arthropoda. There are more than a million known species of arthropods. However, scientists estimate that only about a tenth of all arthropod species have been identified. In addition to insects, arthropods include animals such as spiders, centipedes, and lobsters. You can see why arthropods were successful both in the water and on land, by watching these excellent videos:.


Q: In addition to insects, what large invertebrate phylum includes animals such as spiders, centipedes, and lobsters?

 Choices:

- onychophora

- fungi

- ostracods

- arthropoda

A:
arthropoda
