What two scientists established the structure of dna?

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.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

What is the compliment dna strand to the following sequence: ttgactaggcta