In the kidney of mammals, the site of ultrafiltration is the
a. uriniferous tubule
b. bowman's capsule
c. loop of henle
d. renel tubule

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