The growth of a plant toward light is an example of .
adaptation
response
homeostasis
metabolism

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

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

The diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which stage in the cycle the hormone levels are at their highest and most active.