Phylum Cnidaria: The Hydroids, Jellyfishes, Anemones, And Corals.

31 Questions | By Caellic | Updated: Mar 20, 2022 | Attempts: 204

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Phylum Cnidaria: The Hydroids, Jellyfishes, Anemones, And Corals. - Quiz

The phylum Cnidaria covering Hydra, Obelia, Gnionemus, Physalia, Aurelia, Matridium, Meandrina, Metridium, Gorgonia, Tubipore.

Questions and Answers

1.

Cnidarians are eumetazoan.
- A.
  
  True
- B.
  
  False
2.

The hydroids, jellyfish, and anemones that belong to this group all have a basic body plan that exhibits _________?
- A.
  
  Bilateral Symmetry
- B.
  
  Radial Symmetry
- C.
  
  TopsyTurvy Semmetry
3.

If something is diploblastic, this means it is derived from what?
- A.
  
  One tissue layer.
- B.
  
  Two tissue layers.
- C.
  
  Three tissue layers.
4.

What are sessile forms that are cylindrical, with the mouth found on the upper side and tentacles extending upward.
5.

What are umbrella shaped forms that have the mouth located on the lower side and thd tentacles extending down?
6.

The epidermis is the _____________?
- A.
  
  External Covering
- B.
  
  Internal Covering
- C.
  
  The tentacles
7.

A layer of gelatinous material, ______________, is found between the internal and external layers and gives this group their soft, jelly-like feel.
8.

The stinging cells are called __________?
9.

Cnidocytes contain structures called ____________ that are capable of injecting neurotoxins.
10.

The genus Hydra is part of what class?
11.

The genus Obelia is part of what class?
12.

Genus Gonionemus is part of what class?
13.

Genus Physalia is part of what class?
14.

Genus Aurelia is part of what class?
15.

Genus Metridium is part of what class?
16.

Genus Meandrina is part of what class?
17.

Genus Gorgonia is part of what class?
18.

Genus Tubipora is part of what class?
19.

What is the genus of this image?
20.

What is the genus of the species in this image?
21.

What is the genus of the species in this image?
22.

What is the genus of this species?
23.

What is the genus name of the specimen in this image?
24.

What is the genus name of this specimen?
25.

What is the genus name of this specimen?