The cell membrane of a red blood cell will allow water , carbon dioxide, oxygen and glucose to pass through. because other substances are blocked from entering, this membrane is called

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

Does any one know what blood tastes like

Which of these structures are found in both plant ans animal cells?