Which structure is NOT normally found in any sponges?

Which class in phylum Cnidaria would this creature be found?

What phylum of marine organisms has stinging cells called cnidocytes?

What is the best way to describe the brain of a sea anemone?

The members of which class of the phylum Cnidaria occur ONLY as polyps?

Corals are most closely related to which group?

The photosynthetic dinoflagellate that lives inside coral polyps in a symbiotic relationships is the

The deadliest creature in the world is the

Generally, members of which flatworm class are nonparasitic?

When humans ingest undercooked pork or beef they might be infected with this parasitic flatworm that attaches itself to the host’s intestines causing weight loss and fatigue.

This parasitic flatworm infects humans with the disease called Schistosomiasis when snails release the larvae into the water and they migrate into the human skin and veins causing anemia and even death.

Spiders and scorpions have all of the following structures EXCEPT

The largest group of mollusks that live on land or in water, have a single shell (or no shell), a radula for feeding, and well developed eyes are the

One of the earliest cephalopods found in the fossil record, the only one to have a hard shell, and is able to regulate buoyancy by gas chambers in the shell is the

What class does this animal belong to?

This class of Echinoderms can use its tube feet to pry open clams and eject its stomach to digest the clam in its shell. They can also regenerate a limb or their entire body if the central disc is present.

All of the following animal groups include terrestrial and aquatic life forms EXCEPT

Terrestrial animals that have an open circulatory system and an exoskeleton made of chitin

What phylum would spiders and crabs be found in?