Question 1

Birds are descended from species that laid eggs in water. It could be argued that embryos of birds still develop in water because ________.

Accepted Answer

A)   the shell keeps the embryo from drying out
B)   the amnion encases each embryo in water
C)   the chorion, allantois, and yolk sac provide embryos with nutrients and waste disposal
D)   the amnion protect the embryo in the same way that a seed coat protects plant embryos of flowering plantsE) All of the above
F) B) and C)

Question 2

Scientific views are based on evidence rather than an appeal to authority. Which of the following statements demonstrates a conclusion based on an appeal to authority?

Accepted Answer

A)   We conclude that lungs evolved before swim bladders because a study of branching patterns show that some of the oldest lineages of Osteichthyes have lungs.
B)   We conclude that lungs evolved before swim bladders because Darwin wrote that swim bladders evolved before lungs in The Origin of Species.
C)   We conclude that lungs evolved before swim bladders because the oldest osteichthyan fossils show lungs arising before swim bladders.
D)   We conclude that lungs evolved before swim bladders because Hox genes direct the evolution of swim bladders but not of lungs.E) A) and B)
F) A) and C)

Exam 34: The Origin and Evolution of Vertebrates

Birds are descended from species that laid eggs in water. It could be argued that embryos of birds still develop in water because ________.

Correct Answer
verified

Scientific views are based on evidence rather than an appeal to authority. Which of the following statements demonstrates a conclusion based on an appeal to authority?

Correct Answer
verified

Exam 34: The Origin and Evolution of Vertebrates

Birds are descended from species that laid eggs in water. It could be argued that embryos of birds still develop in water because ________.

Correct AnswerverifiedShow Answer

Scientific views are based on evidence rather than an appeal to authority. Which of the following statements demonstrates a conclusion based on an appeal to authority?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified