|
Sand dollars, sea urchins, and starfish are ____.
|
annelids
|
|
Kangaroos, koalas, wombats, and opossums are ____.
|
arthropods
|
|
Arachnids, crustaceans, insects, and myriapods are ____.
|
echinoderms
|
|
Clams, oysters, slugs, snails, and cephalopods are ____.
|
flatworms
|
|
Beetles are ____, whereas spiders are arachnids.
|
insects
|
|
Nematodes are roundworms. Flukes and tapeworms are ____.
|
marsupials
|
|
Large mammals with hooves (cows and horses) are ____.
|
mollusks
|
|
Earthworms and leeches are ____ (segmented worms).
|
ungulates
|
