Exam 8: Lower Invertebrates

Match the sponge type with the description of body plan. -Leuconoid

Asconoid sponges are usually the smallest of all sponges.

Cnidocytes are stinging cells that are characteristic of the phylum:

Describe the three main body types of sponges. Which of the three body types is usually the largest? Why?

Sponges can reproduce both sexually and asexually.

Match the dominant stage with the class it is most closely associated with. -Hydrozoan

Ctenophores are lined with 10 rows of long tentacles used for locomotion.

Match the animal group with its most closely associated food gathering tool. -Nemertea

The Cnidarians possess:

Match the term with its most closely associated animal group. -Ribbon worms

Which of the following is false about animals?

The nematocysts of cnidarians are produced within the:

Cnidarians that exhibit only the polyp stage in their life cycle are:

The benthic jellyfish ____ traps plankton to feed on.

Ctenophores feed on:

How could you tell the difference between a brachiopod and a clam?

If all the meiofaunal organisms were eliminated from a sandy beach, how would that affect the habitat and the trophic structure of the beach?

An example of a member of the class Anthozoa of the phylum Cnidaria is:

Match the term with its most closely associated animal group. -Porifera

Match the words with the animals they are most closely associated with. -Porifera