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Author Question: What order has the most living bony fish species? a. Chondrichthyes b. Osteichthyes c. Teleostei ... (Read 52 times)

imanialler

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on: Aug 22, 2018

What order has the most living bony fish species?
  a. Chondrichthyes
  b. Osteichthyes
  c. Teleostei
  d. Coelacanths



Question 2

What needle-like structure provides a skeletal network for a sponge?
  a. Cnidoblasts
  b. Polyps
  c. Spicules
  d. Zooxanthellae



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shewald78

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

ANS: C
Approximately 90 of all living bony fish are in the order Teleostei. There are a variety of fin,
camouflage, migration patterns, and social interactions to occupy every marine environment.
Information can be found in the section Fishes Are Earth's Most Abundant and Successful Vertebrates



Answer to Question 2

ANS: C
Spicules are made of calcium carbonate or silica. They prevent the internal cavities from collapsing.
Spongin, a protein, provides the same function. Information can be found in the section Invertebrates
Are the Most Successful and Abundant Animals.



imanialler

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Reply #2 on: Aug 22, 2018
Thanks


shewald78

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Reply #3 on: Aug 22, 2018
Welcome :)


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