A population of mammals leaves an ecosystem because of increased temperatures and decreased rainfall. What's the reason for this shift? A. change in abiotic factors B. change in biotic factors C. change in food preferences D. change in genetic makeup

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.