Which of the following facts is the best evidence that humans and salamanders had a common ancestor? A) Both species eat meat
B) Both species have pharyngeal arches and slits when they are embryos
C) Both species can swim
D) Both species have skin

B

Explanation:

Look up an image of a human embryo v. a salamander embryo if you look carefully you'll see the arches and slits.

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.

the median of the data is 4.5.