Then the red blood cells travels to the system

Differences between compact bone and cartilage

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above