Which disorder could develop in the human
body when the immune system attacks a usually
harmless environmental substance?
(1) cancer (3) an allergy
(2) aids (4) an infection

What is the difference between a scientific hypotheses and a scientific theory?

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

What is the starting point in replication called