Non-bilaterians
Worms
Mollusks
Arthropods
Random
100

This type of cell is responsible water current formation and collection of food particles in sponges.

What are choanocytes/collar cells?

100

Annelids have these locomotive structures protruding from parapodia.

What are setae?

100

Which group of mollusks exhibits torsion?

What is a gastropod?

100

This group of arthropods has three (3) tagmata.

What are insects?

100

Organisms that feed by "eating" their way through the soil are described as this.

What is a deposit feeder?

200

Cnidarians have these specialized stinging cells.

What are cnidocytes?

200

Representatives of this phylum are leeches, tube worms, and earthworms.

What is Phylum Annelida?

200

Cephalopods can change the color of their skin using these specialized cells.

What is a chromatophore?

200

This group of arthropods is aquatic, possess two (2) tagmata, and have two (2) pairs of antennae.

What are the crustaceans?

200

This term describes development in which the anterior end of the alimentary canal forms first.

What is a protostome?

300

This phylum has a diffuse net net.

What is Cnidaria/Ctenophora?

300

This phylum is in a monophyletic group with the arthropods due to the synapomorphy of ecdysis/molting.

What is Nematoda?

300

Which group of mollusks has eight (8) fused shells and feeds with a radula?

What is a Polyplacophoran?

300

This type of metamorphosis reduces competition for resources and habitat between juvenile and adult stages of species.

What is holometabolous/complete metamorphosis?

300

This term describes embryonic development in which offspring are nourished internally and born live.

What is viviparous?

400

These structures form the ECM of sponges.

What is a spicule?

400

This phylum is acoelomate and triploblastic.

What is Platyhelminthes/flatworms?

400

How do bivalves feed?

What is suspension or filter feeding?

400

This group of chelicerates does NOT undergo metamorphosis.

What is Arachnida?

400

This phylum consists of planktonic coelomates that use a structure called a "corona" for suspension feeding and locomotion.

What is Phylum Rotifera?

500

This phylum contains the largest animals to use ciliary combs for locomotion.

What are the Ctenophora?

500

What phylum has a representative that does not have a mouth and absorbs its nutrition through its body wall?

What is Platyhelminthes/flatworms?

500

Which group of mollusks has only one representative that has an outer, calcified shell and a highly modified foot for grasping?

What is Class Cephalopoda?

500

This class of arthropods has two (2) pairs of legs per segment and is a detritivore.

What is Class Diplopoda?

500

In diploblasts, this germ layer forms the digestive and reproductive tissues.

What is endoderm?