Which of the following units would you use to measure the length of a blue whale?

Could someone me with number one you

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

Pulmonary arteries carry highly oxygenated blood. true or false?