During which period did the first true mammals appear?
a. permian
b. triassic
c. jurassic
d. cretaceous

Which of the following would be an important part of a multi-step plan to restore the stability of the red-cockaded woodpecker's ecosystem?

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

There are multiple lines of evidence that provide support for common ancestry and evolution. write 3-4 paragraphs describing at least three of them in detail. provide at least one example for each line of evidence.