Unicellular Eukaryotes
Sponges
Cnidaria
Ctenophora
Platyhelminthes

100

The three main modes of movement in unicellular eukaryotes include cilia, flagella, and these

What are pseudopodia?

100

These are the feeding cells of sponges, also called "collar cells"

What are choanocytes?

100

Watch out! The tentacles of sea jellies are studded with stinging weapons called this

What are nematocysts?

100

Plebes might call ctenophores this.

What are comb jellies?

100

The common man may call platyhelminthes this

What are flat worms?

200

All unicellular eukaryotes contain these organelles, which were originally free-living bacteria

What are mitochondria?

200

Although multicellular, sponges lack this type of organization

What are tissues?

200

Sea anemones are members of this Cnidarian class. 

What is Anthozoa?

200

While not the only animals that can do this, ctenophores are remarkable in that most of them do this, so that they may be seen even on the darkest nights 

What is bioluminescence?

200

The body cavity of platyhelminthes is not lined with endoderm, but is instead nestled within the mesoderm. This term describes that.

What is acoelomate?

300

Some unicellular eukaryotes contain these organelles, which were originally free-living bacteria that could photosynthesize

What are chloroplasts?

300

Calcarous or siliceous crystalline structures, as seen here, are found embedded in sponge walls, and are called this 

What are spicules?

300

These cnidarians are considered to be the "true jellies", due to the presence of the vellum

What is Class Scyphozoa?

300

Unlike cnidarians, ctenophora have an anus, which means that their digestive system can be described as this

What is complete?

300

Platyhelminthes possess ectoderm, mesoderm, and endoderm, which means they are this

What is triploblastic?

400

This disease is caused by a plasmodium that is transmitted from cats, via feces, to humans

What is Toxoplasmosis?

400

The three types of sponge forms include asconoid, syconoid, and this

What is leuconoid?

400

Cnidarians can often exist in two main forms: the medusa and this

What is the polyp?

400

Ctenophora move through water by beating rows of these

What are cilia?

400

This class includes the liver flukes.

What is Trematoda?

500

All unicellular eukaryotes contain this important cellular structure, which contains and protects the DNA

What is the nucleus?

500

Sponges pull water through ostia with the flow generated by this collar cell structure

What is the flagellum?

500

Cnidarians do not have a central nervous system, but they do have this, a system that we also have in our guts

What is a nerve net?

500

The body symmetry of ctenophores only exists on two planes because tentacles are paired. This type of symmetry is called this

What is biradial symmetry?

500

This class includes our adorable friends, the planaria, as seen here: 

What is Turbellaria?