Share/Like This Page
Print Instructions

NOTE: Only your test content will print.
To preview this test, click on the File menu and select Print Preview.




See our guide on How To Change Browser Print Settings to customize headers and footers before printing.

The Cnidarians (Grades 11-12)

Print Test (Only the test content will print)
Name: Date:

The Cnidarians

1. 
What are the two main body forms that exist in the phylum Cnidaria?
  1. polyp and medusa
  2. planula and veliger
  3. adult and larvae
  4. trocophore and megalope
2. 
Which of these are the specific structures that cnidarians use for paralyzing their prey?
  1. cnidocils
  2. cnidocytes
  3. nematocysts
  4. ocelli
3. 
A jellyfish can still sting even if it has been dead for several days.
  1. True
  2. False
4. 
Which of the following groups of cnidarians has a polyp stage that is most prominent?
  1. class Hydrozoa
  2. class Scyphozoa
  3. class Anthozoa
  4. class Cubozoa
5. 
Which grouping of cnidarians contains animals that are considered some of the most deadly in the ocean?
  1. class Hydrozoa
  2. class Cubozoa
  3. class Anthozoa
  4. class Scyphozoa
6. 
What is the jelly-like material called that is found inside the bell of a jellyfish and gives it its structure?
  1. mesoglea
  2. cytoplasm
  3. ocelli
  4. cnidocil
7. 
What is the function of the ocelli found on the perimeter of a medusa's bell?
  1. The ocelli are where gametes are produced.
  2. The ocelli are able to detect changes in water pressure.
  3. The ocelli can detect different intensities of light.
  4. The ocelli can be used to trigger the cnidocytes to fire when prey approaches.
8. 
Which of these describes the method by which cnidarians are able to digest their food?
  1. Cnidarians have a complete digestive system with two openings.
  2. Cnidarians absorb their food across their body wall into a primitive gut cavity.
  3. Cnidarians use their tentacles to breakdown the captured prey before it is taken into the body through the mouth.
  4. Cnidarians only have one opening for digestion, located on the aboral side of the animal.
9. 
Cnidarians have                    because they can be divided along a central axis from top to bottom.
10. 
What is the symbiotic relationship that exists between corals and algae?



You need to be a HelpTeaching.com member to access free printables.
Already a member? Log in for access.    |    Go Back To Previous Page