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Author Question: What do the simplest vertebrates lack? a. jaws b. notochord c. central nervous system d. teeth ... (Read 62 times)

nelaaney

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on: Aug 22, 2018

What do the simplest vertebrates lack?
  a. jaws
  b. notochord


 

c. central nervous system
  d. teeth
  e. skull



Question 2

What is an invertebrate chordate?
  a. A chordate that has lost its gill slits
  b. A chordate with an underdeveloped dorsal nerve system
  c. A chordate that has lost its notochord
  d. A chordate that has a backbone
  e. A chordate that evolved to become an invertebrate



joshbk44

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

a

Answer to Question 2

c


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nelaaney

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Reply #2 on: Aug 22, 2018
Both answers were spot on, thank you once again


joshbk44

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Reply #3 on: Aug 22, 2018
Great! Please up vote :D


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