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Author Question: What is the term for vertebrates who have a skeleton made of cartilage? a. Osteichthyes b. ... (Read 79 times)

kfurse

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on: Aug 22, 2018

What is the term for vertebrates who have a skeleton made of cartilage?
  a. Osteichthyes
  b. Chondrichthyes
  c. Reptilia
  d. Ophiuroids



Question 2

What makes up the greatest biomass of any species on Earth?
  a. King crab
  b. Krill
  c. Squid
  d. Coral



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dmurph1496

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

ANS: B
Chondrichthyes include sharks, rays, skates, and chimaeras. Cartilage is tough and elastic, but is not
true bone. Information can be found in the section Fishes Are Earth's Most Abundant and Successful
Vertebrates.



Answer to Question 2

ANS: B
Krill is a planktonic arthropod. It is eaten by an incredibly diverse selection of organism, including
very large whales. Information can be found in the section Advanced Invertebrates Have Complex
Bodies and Internal Systems.



kfurse

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Reply 2 on: Aug 22, 2018
Excellent

amcvicar

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Reply 3 on: Yesterday
Gracias!

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