Compare and contrast the eukaryotic and prokaryotic cells. They have several features in common but they also differ in several ways. The two cells share All BUT ONE feature. Select the one way these two cells differ.
A) contain DNA
B) enclosed in protein capsule
C) undergo cellular respiration
D) produce proteins in ribosomes

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

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