Aspecific immune response involves which kind of leukocyte?
eosinophils
lymphocyte
basophils
monocytes

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

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