The composition of sedimentary rock shows the source of the sediment that makes up the rock. which of the following would provide the best evidence of how the rock formed?

a
the rock's fossil content

b
the rock's texture

c
the rock's color

d
the rock's age

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.