Arthropods are the what without a backbone?
largest phylum graptolites insects largest mammals largest organs solid, liquid, gas animals largest species
A B C D E F G H
Invertebrates are animals without a backbone.
Arthropods are the largest phylum without a backbone
Arthropods are the what without a backbone? (A) largest phylum (B) graptolites (C) insects (D) largest mammals (E) largest organs (F) solid, liquid, gas (G) animals (H) largest species