Question

multiple select question
select all that apply
select the main groups of arthropods.
annelids
polychaetes
cephalopods
mandibulates
chelicerates
trilobites

Explanation:

Arthropods are a diverse group of invertebrates. Mandibulates (which include insects, crustaceans, etc.), chelicerates (such as spiders, scorpions), and trilobites (extinct but still a main group in arthropod classification) are main groups of arthropods. Annelids (like earthworms) are a separate phylum. Polychaetes are a class within Annelida. Cephalopods are a class within Mollusca.

Answer:

D. mandibulates, E. chelicerates, F. trilobites