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Author Question: What phylum contains sea jellies? a. Porifera b. Cnidaria c. Echinodermata d. ... (Read 52 times)

melina_rosy

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on: Aug 22, 2018

What phylum contains sea jellies?
  a. Porifera
  b. Cnidaria
  c. Echinodermata
  d. Platyhelminthes



Question 2

What is an ophiuroid?
  a. Sea urchins
  b. Tunicate
  c. Salps
  d. Brittle stars



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meow1234

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Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: B
Cnidarians are carnivorous animals that have stinging cells. These are called cnidoblasts. The sea
jellies are in the medusa stage of cnidarians. Information can be found in the section Invertebrates Are
the Most Successful and Abundant Animals.



Answer to Question 2

ANS: D
Ophiuroids, or brittle stars, have long, slender arms. They break off their arms when being attacked as
an evasive tactic. Information can be found in the section Advanced Invertebrates Have Complex
Bodies and Internal System



melina_rosy

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Reply #2 on: Aug 22, 2018
TY


meow1234

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Reply #3 on: Aug 22, 2018
You're welcome


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