Which two are used for relative geologic dating? A. carbon-14
B. index fossils
C. stratigraphy
D. luminescence
E. potassium-argon

Which of the following is a cost of urbanization? a-cities can provide a high standard of living. b-cities are hubs of entertainment and education. c-paving over land changes the environment. d-job opportunities are greater in urban centers.

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

Do you think the gene eef1 alpha1 supports cell theory? explain your response.