Multiple Choice
In the section "Investigating Life: Evolving Backwards," what is the significance of Najash rionegrina,an extinct,land-dwelling species of snake with functional legs,pelvis,and sacrum?
A) Has a common ancestor to modern-day snakes,but placed in a derived group
B) Has the same anatomical organization as modern-day snakes
C) Is an ancestor to modern-day snakes,but has different anatomical organization than modern-day snakes
D) Is an ancestor to modern-day snakes and has same anatomical organization as modern-day snakes
E) Is an outgroup unrelated to modern-day snakes
Correct Answer:

Verified
Correct Answer:
Verified
Q3: If you were looking for a time
Q4: Data from embyros can be used to
Q12: When ocean levels dropped about 70 million
Q13: The fossil record indicates that at one
Q17: Why do different mutations accumulate in two
Q26: Relative dating uses _ to estimate how
Q29: The fossil record is often incomplete,in part
Q32: Amphibians,birds,and mammals look the most similar as<br>A)
Q44: A gene that when mutated leads to
Q49: Marsupials are mammals that<br>A) lay eggs.<br>B) do